timed

1. N-UNCOUNT 时间
   Time is what we measure in minutes, hours, days, and years.
   1. ...a two-week period of time...
      两周的时间
   2. Time passed, and still Ma did not appear...
      时间一点点过去，马先生仍然没有出现。
   3. As time went on the visits got more and more regular...
      随着时间的流逝，探访变得越来越频繁。
   4. The social significance of religion has changed over time.
      宗教的社会意义随着时间的变迁已经发生了变化。
2. N-SING 时刻;时候;钟点
   You use time to ask or talk about a specific point in the day, which can be stated in hours and minutes and is shown on clocks.
   1. 'What time is it?' — 'Eight o'clock.'...
      “几点钟了？”——“8点钟。”
   2. He asked me the time...
      他问我几点了。
   3. What time did he leave?...
      他什么时候离开的？
   4. I phoned my mother to ask what time she was coming home...
      我打电话给母亲问她几点回家。
   5. The time is now 19 minutes past the hour.
      现在的时间是整点过19分。
3. See also: Departure times are 08:15 from St Quay, and 18:15 from St Helier. opening time
4. N-UNCOUNT (某一时区的)时间
   You use time to refer to the system of expressing time and counting hours that is used in a particular part of the world.
   1. The tidal predictions are expressed in Greenwich Mean Time. Add one hour for British Summer Time...
      潮汐预报用的是格林尼治标准时间。英国夏令时要在标准时基础上加一小时。
   2. The incident happened just after ten o'clock local time.
      事件发生在当地时间 10 点刚过。
5. N-UNCOUNT (用来做某事或某事发生的)时间
   You use time to refer to the period that you spend doing something or when something has been happening.
   1. Adam spent a lot of time in his grandfather's office...
      亚当经常呆在他祖父的办公室里。
   2. He wouldn't have the time or money to take care of me...
      他既不会有时间也不会有钱来照顾我。
   3. Listen to me, I haven't got much time...
      听着，我没多少时间。
   4. It's obvious that you need more time to think...
      显然你需要更多时间来思考。
   5. The route was blocked for some time...
      道路被堵了一段时间。
   6. For a long time I didn't tell anyone...
      很久我都没有告诉任何人。
   7. A short time later they sat down to eat...
      过了一小会儿，他们坐下来吃东西。
   8. Thank you very much for your time.
      非常感谢你抽出了宝贵时间。
6. N-SING (相当长的)一段时间
   If you say that something has been happening for a time, you mean that it has been happening for a fairly long period of time.
   1. He was also for a time the art critic of 'The Scotsman'...
      有相当长的一段时间他为《苏格兰人》报撰写艺术评论。
   2. He stayed for quite a time...
      他呆了相当长的一段时间。
   3. After a time they came to a pond.
      过了好久，他们来到一个池塘。
7. N-COUNT (某事发生的)一段(或特定)时间
   You use time to refer to a period of time or a point in time, when you are describing what is happening then. For example, if something happened at a particular time, that is when it happened. If it happens at all times, it always happens.
   1. We were in the same college, which was male-only at that time...
      我们那时在同一所学院，当时只招男生。
   2. By this time he was thirty...
      到那时他 30 岁了。
   3. During the time I was married I tried to be the perfect wife...
      在那段婚姻生活中，我努力要做个完美的妻子。
   4. It was a time of terrible uncertainty...
      那是一切都很不确定的一段时间。
   5. Homes are more affordable than at any time in the past five years...
      现在住宅比过去5年里的任何时候都要便宜。
   6. It seemed like a good time to tell her...
      那似乎是告诉她的好时机。
   7. There were times when he would ring his bell at all hours of the day or night.
      有段时间，他白天或晚上随时都可能摁铃。
8. N-COUNT 历史时期;时代
   You use time or times to talk about a particular period in history or in your life.
   1. They were hard times and his parents had been struggling to raise their family...
      那是段艰苦时期，他父母一直艰辛地养家糊口。
   2. We'll be alone together, quite like old times...
      我们会单独在一起，就像过去那样。
   3. We are in one of the most severe recessions in modern times...
      我们正在经历现代最严重的一段经济衰退。
   4. A 'Felucca' is the traditional Nile sailboat, unchanged since the time of the pharaohs.
      Felucca 是尼罗河地区的传统帆船，自法老时代起就没有变过。
9. N-PLURAL 当代;时代潮流
   You can use the times to refer to the present time and to modern fashions, tastes, and developments. For example, if you say that someone keeps up with the times, you mean they are fashionable or aware of modern developments. If you say they are behind the times, you mean they are unfashionable or not aware of them.
   1. He is unafraid to move with the times...
      他敢于与时俱进。
   2. This approach is now seriously out of step with the times...
      这种方法如今与时代潮流严重脱节。
   3. Johnny has changed his image to fit the times.
      约翰尼已经改变了他的形象以迎合时代潮流。
10. N-COUNT (经历的)一段时间，时期
    When you describe the time that you had on a particular occasion or during a particular part of your life, you are describing the sort of experience that you had then.
    1. Sarah and I had a great time while the kids were away...
       孩子们不在的时候，我和萨拉度过了一段美好时光。
    2. She's had a really tough time the last year and a half...
       这一年半以来，她度过了一段非常艰难的时期。
    3. You had an easy time of it at home...
       你在家度过了一段轻松时光。
    4. I try to remember all the good times I've had here.
       我试着回忆在这里度过的所有美好时光。
11. N-SING 生命（期）;期限;时限
    Your time is the amount of time that you have to live, or to do a particular thing.
    1. Now Martin has begun to suffer the effects of AIDS, and he says his time is running out...
       现在马丁开始遭受艾滋病的折磨，他说他的生命就要走到尽头。
    2. Every administration has its time. And when your time is over, you leave...
       每届政府都有其执政期限，任期届满时就得下台。
    3. I doubt I would change anything if I had my time again.
       如果能重新活过，我不确定自己是否愿意做出任何改变。
12. N-UNCOUNT (从事特定活动的)合适时候
    If you say it is time for something, time to do something, or time you did something, you mean that this thing ought to happen or be done now.
    1. Opinion polls indicated a feeling among the public that it was time for a change...
       民意测验表明，公众认为到了改革的时候了。
    2. It was time for him to go to work...
       他该去上班了。
    3. This was no time to make a speech...
       这不是长篇大论的时候。
    4. The time has come to put an end to the conflict...
       结束冲突的时候到了。
    5. It's time you went to school.
       你该去上学了。
13. N-COUNT 次;回
    When you talk about a time when something happens, you are referring to a specific occasion when it happens.
    1. Every time she travels on the bus it's delayed by at least three hours...
       每次她乘公车出行都至少耽搁3个小时。
    2. The last time I saw her was about sixteen years ago...
       我上次见她大约是 16 年前了。
    3. House prices are rising for the first time since November...
       房价自 11 月以来首次上涨。
    4. Next time you go shopping, throw in a few extra fruit and vegetables...
       下次你去买东西，多买点水果蔬菜。
    5. Remember that time she picked up my daughter when I was ill?
       还记得那次我生病，她替我接女儿吗？
14. N-COUNT 次
    You use time after numbers to say how often something happens.
    1. It was her job to make tea three times a day...
       她的差事就是每天沏3次茶。
    2. How many times has your mother told you never to talk to strangers?...
       你母亲告诉你多少次了，绝不能和陌生人谈话？
    3. The Masters golf tournament was won a second time by the American Ben Hogan.
       美国的本·霍根再次夺得高尔夫大师锦标赛冠军。

You do not say 'one time a year' or 'two times a year'; you say once a year or twice a year. You also do not say 'two times as much'; you say twice as much.
“一年一次”或“一年两次”不能说 one time a year 或 two times a year，而要说 once a year 或 twice a year。“两倍那么多”也不能说 two times as much，而要说 twice as much。

15. N-PLURAL 倍
    You use times after numbers when comparing one thing to another and saying, for example, how much bigger, smaller, better, or worse it is.
    1. Its profits are rising four times faster than the average company...
       它的利润增长速度比一般公司快4倍。
    2. Young people were several times more likely to be out of work than older members of the workforce...
       劳动人口中，年轻人失业的可能性是年长者的好几倍。
    3. He polled four times as many votes as his rival.
       他得到的选票数量是竞选对手的4倍。
    4. ...an area five times the size of Britain.
       面积为英国领土5倍大的区域
16. CONJ-COORD 乘以
    You use times in arithmetic to link numbers or amounts that are multiplied together to reach a total.
    1. Four times six is 24.
       4 乘以 6 等于 24。
17. N-COUNT (赛跑等)所用时间，成绩
    Someone's time in a race is the amount of time it takes them to finish the race.
    1. He was over a second faster than his previous best time...
       他比自己以前的最好成绩快了 1 秒多。
    2. She recorded a time of two minutes 8.74 seconds.
       她以两分 8 秒 74 的成绩创了纪录。
18. N-UNCOUNT 拍子;节拍
    The time of a piece of music is the number of beats that the piece has in each bar.
    1. A reel is in four-four time, and a jig is in six-eight time.
       里尔舞曲是四四拍，吉格舞曲是六八拍。
19. VERB 给…确定时间;为…安排时间
    If you time something for a particular time, you plan or decide to do it or cause it to happen at this time.
    1. He timed the election to coincide with new measures to boost the economy...
       他把选举安排在振兴经济的新政策出台时。
    2. We had timed our visit for March 7...
       我们把访问时间确定在3月7日。
    3. He had timed his intervention well...
       他选择介入的时机恰到好处。
    4. Operation Amazon is timed to coincide with the start of the dry season.
       拯救亚马孙河的行动安排在了旱季来临之际。
20. VERB 测定…所花时间
    If you time an action or activity, you measure how long someone takes to do it or how long it lasts.
    1. He timed each performance with a stop-watch.
       他用秒表测定每组动作所花的时间。
21. See also: timing
22. PHRASE 该是…的时候了;早该…了
    If you say it is about time that something was done, you are saying in an emphatic way that it should happen or be done now, and really should have happened or been done sooner.
    1. It's about time a few movie makers with original ideas were given a chance...
       该给为数不多的几个有创见的电影制作者一个机会了。
    2. 'Here she is.' — 'About time too.'
       “她来了。”——“也早该来了。”
23. PHRASE 提前;预先
    If you do something ahead of time, you do it before a particular event or before you need to, in order to be well prepared.
    1. Find out ahead of time what regulations apply to your situation.
       提前搞清楚什么规章适用于你的情况。
24. PHRASE (思想)先进，领先于时代
    If someone is ahead of their time or before their time, they have new ideas a long time before other people start to think in the same way.
    1. My mother was ahead of her time. She surrounded me with culture and art.
       我母亲思想前卫，给予了我文化和艺术的熏陶。
    2. His only fundamental mistake, he insists, is that he was 20 years before his time.
       他坚持认为，他仅有的根本性错误是他比时代超前了20年。
25. PHRASE 一直;始终
    If something happens or is done all the time, it happens or is done continually.
    1. We can't be together all the time...
       我们不能始终在一起。
    2. I get the two of them mixed up all the time, they're so similar.
       我一直把他们俩弄混，他俩太像了。
26. PHRASE 一次;每次
    You say at a time after an amount to say how many things or how much of something is involved in one action, place, or group.
    1. Beat in the eggs, one at a time...
       打入鸡蛋，一次一个。
    2. She ran for the staircase and down the steps, taking them two at a time...
       她跑向楼梯，一步两级地奔下台阶。
    3. Do you sometimes find that you are doing very little physical exercise for several weeks at a time?
       你有时会不会发现自己一连几个星期都没怎么锻炼过？
27. PHRASE 随时;任何时候
    If something could happen at any time, it is possible that it will happen very soon, though nobody can predict exactly when.
    1. Conditions are still very tense and the fighting could escalate at any time.
       局势仍然非常紧张，战斗随时可能升级。
28. PHRASE 即使在最好的情况下
    You say at the best of times when you are making a negative or critical comment to emphasize that it is true even when the circumstances are as favourable as possible.
    1. A trade war would be bad at the best of times, but in the current economic climate, it would be a disaster.
       即使在情况最好的时候贸易战都是有害无利的，而在当前这种经济形势下只会是一场灾难。
29. PHRASE 一度;曾经
    If you say that something was the case at one time, you mean that it was the case during a particular period in the past.
    1. At one time 400 men, women and children lived in the village.
       曾经有 400 个男人、女人和孩子居住在村子里。
    2. ...enormous glaciers, which at one time covered vast areas of the northern hemisphere.
       一度覆盖了北半球辽阔区域的巨大冰川
30. PHRASE 同时
    If two or more things exist, happen, or are true at the same time, they exist, happen, or are true together although they seem to contradict each other.
    1. I was afraid of her, but at the same time I really liked her...
       我害怕她，但同时也确实喜欢她。
    2. She was somehow able to look sad and cheerful at the same time.
       她能够做出又悲又喜的神情。
31. PHRASE 然而;不过
    At the same time is used to introduce a statement that slightly changes or contradicts the previous statement.
    1. I don't think I set out to come up with a different sound for each album. At the same time, I do have a sense of what is right for the moment.
       我不觉得我一开始就特意为每张专辑设定了不同的曲风。然而，我确实知道当时想要的是什么感觉。
32. PHRASE 有时;间或
    You use at times to say that something happens or is true on some occasions or at some moments.
    1. The debate was highly emotional at times...
       辩论有时变得异常情绪化。
    2. At times she had an overwhelming desire to see him...
       她有时会特别想见他。
    3. He went on listening to her, at times impatient and at times fascinated.
       他继续听她讲，有时很不耐烦，有时深受吸引。
33. PHRASE 在…出生以前；在…有记忆前
    If you say that something was before your time, you mean that it happened or existed before you were born or before you were able to know about it or remember it.
    1. 'You've never seen the Marilyn Monroe film?' — 'No, I think it was a bit before my time.'
       “你从来没看过玛丽莲·梦露演的电影？”——“是的，她拍电影时我还不记事呢。”
34. PHRASE 过早
    If someone has reached a particular stage in life before their time, they have reached it at a younger age than is normal.
    1. The small print has forced me, years before my time, to buy spectacles...
       印刷文字过小迫使我早早就要买眼镜戴。
    2. There is nothing like a college town to make you feel old before your time.
       没有哪个地方能像大学城那样让你感到未老先衰。
35. PHRASE 早该发生；早该如此
    If you say not before time after a statement has been made about something that has been done, you are saying in an emphatic way that you think it should have been done sooner.
    1. The virus is getting more and more attention, and not before time...
       这种病毒正受到越来越多的关注，其实早该如此。
    2. Not before time, that is about to change.
       那一切总算要变了。
36. PHRASE 结束
    If you call time on something, you end it.
    1. Scott Hastings has called time on his international career by cutting short his contract.
       斯科特·黑斯廷斯中止合同，结束了他的国际比赛生涯。
37. PHRASE 坐牢;服刑
    Someone who is doing time is in prison.
    1. He is serving 11 years for robbery, and did time for a similar offence before that.
       他因犯抢劫罪正在服11年的刑期，此前他也曾因类似罪行蹲过监狱。
38. PHRASE 永远
    If you say that something will be the case for all time, you mean that it will always be the case.
    1. The desperate condition of the world is that madness has always been here, and that it will remain so for all time.
       这个世界令人绝望的是，疯狂之事一直存在，而且将永远存在下去。
39. PHRASE 目前;暂时
    If something is the case or will happen for the time being, it is the case or will happen now, but only until something else becomes possible or happens.
    1. For the time being, however, immunotherapy is still in its experimental stages...
       但免疫疗法目前仍处于实验阶段。
    2. The situation is calm for the time being.
       局势暂时稳定。
40. PHRASE 不时地;间或;偶尔
    If you do something from time to time, you do it occasionally but not regularly.
    1. Her daughters visited him from time to time when he was ill.
       他生病的时候她的女儿们时常去探望他。
41. PHRASE 常常;几乎总是
    If you say that something is the case half the time you mean that it often is the case.
    1. Half the time, I don't have the slightest idea what he's talking about.
       我经常一点儿都听不懂他在说什么。
42. PHRASE 不喜欢/喜欢;不赞成/赞成
    If you say that you have no time for a person or thing, you mean you do not like them or approve of them, and if you say that you have a lot of time for a person or thing, you mean you like them or approve of them very much.
    1. When I think of what he's done to my mother and me, I've just got no time for him...
       想到他对母亲和我所做的一切，我就很讨厌他。
    2. I have got a lot of time for people who are prepared to put the welfare of their party above their own vanity.
       我很钦佩那些不计个人名利，以政党的利益为重的人。
43. PHRASE (早)该…了;是时候…了
    If you say that it is high time that something happened or was done, you are saying in an emphatic way that it should happen or be done now, and really should have happened or been done sooner.
    1. It is high time the Government displayed a more humanitarian approach towards victims of the recession...
       政府早该对受到经济衰退影响的人们采取更加人性化的救助措施。
    2. It is high time to consider the problem on a global scale.
       早该从全球视角考虑问题了。
44. PHRASE 及时;不迟
    If you are in time for a particular event, you are not too late for it.
    1. I arrived just in time for my flight to London...
       我及时赶上了飞往伦敦的航班。
    2. She set the alarm so she'd wake up in time to give her two sons their medication.
       她定了闹钟，以便及时醒来给两个儿子服药。
45. PHRASE 最终;迟早
    If you say that something will happen in time or given time, you mean that it will happen eventually, when a lot of time has passed.
    1. He would sort out his own problems, in time...
       他早晚会解决自己的问题。
    2. Tina believed that, given time, her business would become profitable.
       蒂娜相信假以时日，她的生意一定会盈利。
46. PHRASE 合拍/不合拍
    If you are playing, singing, or dancing in time with a piece of music, you are following the rhythm and speed of the music correctly. If you are out of time with it, you are not following the rhythm and speed of the music correctly.
    1. Her body swayed in time with the music...
       她的身体随着音乐节拍摆动。
    2. We were standing onstage playing completely out of time.
       我们站在舞台上，演奏得完全不合节拍。
47. PHRASE 在…之后
    If you say that something will happen, for example, in a week's time or in two years' time, you mean that it will happen a week from now or two years from now.
    1. Presidential elections are due to be held in ten days' time...
       总统竞选将在10天后如期举行。
    2. In a year's time we will all be laughing about it.
       一年以后我们都会对此一笑置之。
48. PHRASE 提早，提前(到达)
    If you arrive somewhere in good time, you arrive early so that there is time to spare before a particular event.
    1. If we're out, we always make sure we're home in good time for the programme.
       如果外出，我们总是确保在节目开始之前赶回家。
49. PHRASE 慢慢来;别急;来得及
    If you tell someone that something will happen in good time or all in good time, you are telling them to be patient because it will happen eventually.
    1. There will be many advanced exercises that you won't be able to do at first. You will get to them in good time...
       有许多难度较大的动作你起初不会做，但慢慢就会了。
    2. 'I can't wait to be grown up.' — 'All in good time.'
       “我等不及要长大了。”——“别急，你总会长大的。”
50. PHRASE 立刻;马上
    If something happens in no time or in next to no time, it happens almost immediately or very quickly.
    1. He's going to be just fine. At his age he'll heal in no time...
       他会好起来的。以他的年纪，他很快就会痊愈。
    2. He expects to be out of prison in next to no time.
       他期盼着立即出狱。
51. PHRASE 从容地;不慌不忙地
    If you do something in your own time, you do it at the speed that you choose, rather than allowing anyone to hurry you.
    1. Now, in your own time, tell me what happened.
       现在慢慢告诉我发生了什么事。
52. PHRASE 在业余时间;在空闲时间
    If you do something such as work in your own time in British English, or on your own time in American English, you do it in your free time rather than, for example, at work or school.
    1. If I choose to work on other projects in my own time, then I say that is my business.
       如果我选择在业余时间做其他项目，我认为那是我自己的事情。
53. PHRASE 和着拍子;按节拍
    If you keep time when playing or singing music, you follow or play the beat, without going too fast or too slowly.
    1. As he sang he kept time on a small drum.
       他边唱边和着节拍敲一个小鼓。
54. PHRASE (钟表)走得准
    When you talk about how well a watch or clock keeps time, you are talking about how accurately it measures time.
    1. Some pulsars keep time better than the earth's most accurate clocks.
       某些脉冲星发送脉冲比地球上最精确的时钟都准时。
55. PHRASE 腾出时间;留出时间
    If you make time for a particular activity or person, you arrange to have some free time so that you can do the activity or spend time with the person.
    1. Before leaving the city, be sure to make time for a shopping trip...
       离开城市之前，一定要留出时间去买些东西。
    2. She had made time for me in the midst of her busy schedule...
       她在百忙中为我腾出了时间。
    3. I think you should always make time to see your friends.
       我认为无论何时你都应该留出看望朋友的时间。
56. PHRASE (旅途)比预期的快
    If you say that you made good time on a journey, you mean it did not take you very long compared to the length of time you expected it to take.
    1. They had left early in the morning, on quiet roads, and made good time.
       他们一大早出发，一路上人车稀少，走得比预期快多了。
57. PHRASE 弥补过去损失的时间
    If someone is making up for lost time, they are doing something actively and with enthusiasm because they have not had the opportunity to do it before or when they were younger.
    1. Five years older than the majority of officers of his same rank, he was determined to make up for lost time.
       他比同一级别的大多数军官年长 5 岁，因此他决心积极努力来弥补过去损失的时间。
58. PHRASE 消磨时光;等待时机
    If you are marking time, you are doing something that is not particularly useful or interesting while you wait for something more important or interesting to happen.
    1. He's really just marking time until he's old enough to leave.
       他其实只是在消磨时光，等年龄一到就退休。

1. This change has been timed under laboratory conditions
   在实验室条件下测得了这一变化所需的时间。
2. The explosive device was timed to go off at the rush hour
   爆炸装置被设定在高峰时间引爆。
3. The pulse is usually timed in microseconds.
   脉冲通常以微秒计。
4. Like the old trouper he is, he timed his entry to perfection.
   作为一名老戏骨，他上场的时间把握得恰到好处。
5. He timed the election to coincide with new measures to boost the economy
   他把选举安排在振兴经济的新政策出台时。
6. We had timed our visit for March 7
   我们把访问时间确定在3月7日。
7. He had timed his intervention well
   他选择介入的时机恰到好处。
8. Operation Amazon is timed to coincide with the start of the dry season.
   拯救亚马孙河的行动安排在了旱季来临之际。
9. He timed each performance with a stop-watch.
   他用秒表测定每组动作所花的时间。
10. The connection could have timed out.
    该连接可能已超时。
11. A representative sample of manual tests are executed and timed.
    一个代表性的手工测试的例子被执行，并记录时间。
12. Additionally, contention for Managed Objects may cause a timed task to delay its execution.
    例外，管理对象的冲突可能导致一个定时任务的延迟执行。
13. We timed our journey so that we could arrive before dark.
    我们对旅程的时间作了安排，以便我们在天黑之前到达。
14. We timed the race with a stopwatch.
    我们用秒表测定赛跑速度。
15. Then they timed the reactions that caused the new thymine bonds to form.
    然后他们记录了产生新的胸腺嘧啶键形成的反应。
16. Propese a real-time workflow time modeling and verification method based on timed automata.
    提出一种基于时间自动机的实时工作流时间建模与验证方法。
17. In his paper, we introduce timed automata and the algorithm of reachability analysis, and proposes an improvement algorithm of the basic successor algorithm.
    本文介绍了时间自动机和可达性分析算法，并对可达性分析算法中的后继算法进行了改进。
18. For instance, get a coffee maker that can be timed to start brewing when you wake up.
    比如说，买可以定时的咖啡壶，当你醒来时它就能开始煮咖啡了。
19. They checked his arteries and lungs and timed his coagulation rate.
    他们检查了他的动脉和肺，计算了他的血液凝结速度。
20. He timed his watch according to the radio.
    他听收音机校准了他的表。
21. The operation was timed out.
    此项操作已超时。
22. Communication with monitor timed out.
    与监听器的通讯超时。
23. The timed light always goes out before I can reach the landing.
    定时感应灯通常还没等我走到楼下就熄灭了。
24. The sleight of hand, appearance and disappearance of objects, and gestures were all timed precisely and exactly coordinated to the music.
    他娴熟的手法，物体的出现和消失和手势，都和音乐达到了精确的同步和完美的协调。
25. His visit to the city is well timed, since the election is approaching.
    他访问这个城市是时候，因为选举已经临近了。
26. A calculator program can be timed alarm.
    一个计算器程序可以进行定时闹钟。
27. This is controlled by operating system blocks, not a timed interval.
    这是由操作系统块控制而不是时间间隔。
28. We timed our journey, it took us two hours.
    我们作了时间的记录，这个旅程用了两小时。
29. It was timed to coincide with the president's annual state of the union address.
    这次抗议活动的时间与总统一年一度的国情咨文讲话一致。
30. The operation timed out, possibly due to network problems.
    可能由于网络问题，而使操作超时。

adj

1. regularly spaced in time
   1. closely timed intervals