speed

noun

运动 / 行动速率 rate of movement/action

1. （运动的）速度，速率
   the rate at which sb/sth moves or travels
   1. He reduced speed and turned sharp left.
      他减慢速度，向左急转。
   2. The train began to pick up speed (= go faster) .
      火车开始加速。
   3. The car was gathering speed .
      汽车逐渐加速。
   4. a speed of 50 mph/80 kph
      每小时50英里 / 80公里的速度
   5. at high/low/full/top speed
      以高 / 低 / 全 / 最高速
   6. at breakneck speed (= fast in a way that is dangerous)
      以不要命的速度
   7. travelling at the speed of light/sound
      以光速 / 音速行进
2. （发生或进行的）速度；进度
   the rate at which sth happens or is done
   1. the processing speed of the computer
      计算机的处理速度
   2. This course is designed so that students can progress at their own speed.
      这门课的设计思路是让学生自己掌握进度。
   3. We aim to increase the speed of delivery (= how quickly goods are sent) .
      我们力争提高送货速度。
3. 快；迅速
   the quality of being quick or rapid
   1. The accident was due to excessive speed.
      事故的原因在于速度过快。
   2. She was overtaken by the speed of events (= things happened more quickly than she expected) .
      事态发展迅速为她始料所不及。
   3. A car flashed past them at speed (= fast) .
      一辆汽车从他们身边疾驰而过。

摄影 in photography

4. 感光度
   a measurement of how sensitive film for cameras, etc. is to light
5. 快门速度
   the time taken by a camera shutter to open and close
   1. shutter speeds
      快门速度

自行车；汽车 on bicycle/car

6. 排挡；速
   a gear on a bicycle, in a car, etc.
   1. a four-speed gearbox
      有四挡的变速箱
   2. a ten-speed mountain bike
      十速山地自行车

毒品 drug

7. 苯丙胺，安非他明（一种兴奋剂）
   an illegal amphetamine drug that is taken to give feelings of excitement and energy

verb

快速运动 / 发生 move/happen quickly

1. 快速前行
   to move along quickly
   1. He sped away on his bike.
      他飞快地骑着车走了。
2. 快速运送
   to take sb/sth somewhere very quickly, especially in a vehicle
   1. The cab speeded them into the centre of the city.
      出租汽车载着他们迅速驶往市中心。
3. 加速；促进
   to make sth happen more quickly
   1. The drugs will speed her recovery.
      这些药会促进她的康复。

超速驾驶 drive too fast

4. 超速驾驶；超速行驶
   to drive faster than the speed that is legally allowed
   1. The police caught him speeding.
      警察发现他超速行驶。

The form of the past tense and past participle is sped in meaning 5 but speeded for the phrasal verb. 义项 5 的过去式和过去分词为sped，但在短语动词中则为 speeded。


1. N-VAR (运动、运行的)速度，速率
   The speed of something is the rate at which it moves or travels.
   1. He drove off at high speed...
      他驱车飞驰而去。
   2. With this type of camera, the shutter speed is fixed...
      对这类相机而言，快门的速度是固定的。
   3. An electrical pulse in a wire travels close to the speed of light...
      电线里的电脉冲以接近光速的速度传输。
   4. Wind speeds reached force five.
      风速达到 5 级。
2. N-COUNT (某事发生或进展的)速度，进度
   The speed of something is the rate at which it happens or is done.
   1. In the late 1850s the speed of technological change quickened...
      19 世纪 50 年代末期，技术变革的速度加快了。
   2. Each learner can proceed at his own speed.
      每一位学习者都可以按自己的进度学习。
3. N-UNCOUNT (指运动、运行的)高速，快速
   Speed is very fast movement or travel.
   1. Speed is the essential ingredient of all athletics...
      速度是所有田径运动项目的关键要素。
   2. He put on a burst of speed...
      他突然加速了。
   3. The car is quite noisy at speed.
      这辆车高速行驶时噪音很大。
4. N-UNCOUNT (指某事发生或进展时的)高速，快速
   Speed is a very fast rate at which something happens or is done.
   1. I was amazed at his speed of working.
      他办事之麻利让我深感叹服。
   2. ...the sheer speed of the unification process.
      统一进程速度惊人
5. VERB (尤指坐车)快速行进
   If you speed somewhere, you move or travel there quickly, usually in a vehicle.
   1. Trains will speed through the Channel Tunnel at 186mph...
      火车将以每小时 186 英里的速度快速穿过海峡隧道。
   2. The engine noise rises only slightly as I speed along.
      我一路高速行驶时，发动机的噪音只提高了一点点。
6. VERB (驾车者)超速行驶
   Someone who is speeding is driving a vehicle faster than the legal speed limit.
   1. This man was not qualified to drive and was speeding.
      这名男子没有驾驶资格，并且违章超速行驶。
7. 安非他明(一种兴奋剂)
   Speed is an illegal drug such as amphetamine which some people take to increase their energy and excitement.
8. See also: -speed
9. to pick up speed → see: pick
10. PHRASE 掌握最新情况的
    If you are up to speed, you have all the most recent information that you need about something.
    1. A day has been set aside to bring all councillors up to speed on the proposal...
       已经确定了一个日子，届时将向所有的市政委员汇报有关该建议的最新进展情况。
    2. Those in charge deluded themselves they were up to speed.
       那些负责人自以为掌握了最新情况。

1. This system helps speed up access times.
   这个系统有助于加快存取时间。
2. Every bank pays close attention to the speed and accuracy of its staff.
   每家银行都非常关注雇员的工作速度和无差错率。
3. Car buyers are more interested in safety and reliability than speed.
   购车者们更感兴趣的是汽车的安全性和可靠性，而不是它的速度。
4. The speed of economic change has been so great that the tax-collecting system has been unable to cope.
   经济变化得如此之快，以致税收系统都应付不过来了。
5. The speed with which digital cameras can take, process and transmit an image is phenomenal.
   数码相机拍摄、处理和传输图像的速度相当惊人。
6. He accepts he was exceeding the speed limit
   他承认自己超速了。
7. The train's average speed was no better than that of our bicycles.
   火车的平均速度比我们骑自行车的速度快不了多少。
8. He measured the speed at which ultrasonic waves travel along the bone.
   他测出了超声波穿过骨头的速度。
9. Speed and safety are not necessarily incompatible
   速度和安全未必不相容。
10. Its speed is probably in the neighbourhood of 380mph or even more.
    它的时速大约达到了380英里，或者更快。
11. It is a racing machine, designed purely for speed
    那是一个比赛用的机器，完全是为提高速度设计的。
12. The system provides a digital readout of the vehicle's speed
    这个系统提供车辆速度的电子读数。
13. He drove off at high speed
    他驱车飞驰而去。
14. With this type of camera, the shutter speed is fixed
    对这类相机而言，快门的速度是固定的。
15. An electrical pulse in a wire travels close to the speed of light
    电线里的电脉冲以接近光速的速度传输。
16. Each learner can proceed at his own speed.
    每一位学习者都可以按自己的进度学习。
17. Speed is the essential ingredient of all athletics
    速度是所有田径运动项目的关键要素。
18. He put on a burst of speed
    他突然加速了。
19. The car is quite noisy at speed.
    这辆车高速行驶时噪音很大。
20. I was amazed at his speed of working.
    他办事之麻利让我深感叹服。
21. Trains will speed through the Channel Tunnel at 186mph
    火车将以每小时186英里的速度快速穿过海峡隧道。
22. The engine noise rises only slightly as I speed along.
    我一路高速行驶时，发动机的噪音只提高了一点点。
23. This man was not qualified to drive and was speeding.
    这名男子没有驾驶资格，并且违章超速行驶。
24. A day has been set aside to bring all councillors up to speed on the proposal
    已经确定了一个日子，届时将向所有的市政委员汇报有关该建议的最新进展情况。
25. Those in charge deluded themselves they were up to speed.
    那些负责人自以为掌握了最新情况。
26. I had already taken steps to speed up a solution to the problem
    我已经采取措施加快解决该问题。
27. I want to know at what point I break the speed limit and get a ticket.
    我想知道我是在什么地方超速而受到处罚的。
28. We are developing our production at a speed unheard-of before.
    我们正以前所未闻的速度发展生产。

speed up

speed sth↔up

1. （使）加速
   to move or happen faster; to make sth move or happen faster
   1. He reduced speed and turned sharp left.
      他减慢速度，向左急转。
   2. The train began to pick up speed (= go faster) .
      火车开始加速。
   3. The car was gathering speed .
      汽车逐渐加速。
   4. a speed of 50 mph/80 kph
      每小时50英里 / 80公里的速度
   5. at high/low/full/top speed
      以高 / 低 / 全 / 最高速
   6. at breakneck speed (= fast in a way that is dangerous)
      以不要命的速度
   7. travelling at the speed of light/sound
      以光速 / 音速行进

n.

full speed/steam ahead

• 全速（或全力）向前
  with as much speed or energy as possible

up to speed (on sth)

• （在某事上）达到应有的速度，达标
  performing at an expected rate or level
  1. the cost of bringing the chosen schools up to speed
     使选定的学校达标所需的费用
• 了解最新情况；跟上形势
  having the most recent and accurate information or knowledge
  1. Are you up to speed yet on the latest developments?
     你了解最新的进展情况吗？

more haste, less speed

• 欲速则不达
  you will finish doing sth sooner if you do not try to do it too quickly because you will make fewer mistakes

a turn of speed

• 突然加速；加快进度；突然加快的能力
  a sudden increase in your speed or rate of progress; the ability to suddenly increase your speed
  1. He put on an impressive turn of speed in the last lap.
     他在最后一圈猛然加速。

noun

1. changing location rapidly

   Synonym:    speedinghurrying

2. a central nervous system stimulant that increases energy and decreases appetite

   Synonym:    amphetaminepep pillupper

3. a rate (usually rapid) at which something happens
   1. the project advanced with gratifying speed

   Synonym:    swiftnessfastness

4. the ratio of the focal length to the diameter of a (camera) lens system

   Synonym:    focal ratiof numberstop number

5. distance travelled per unit time

   Synonym:    velocity

verb

1. move faster
   1. The car accelerated

   Synonym:    acceleratespeed upquicken

2. cause to move faster
   1. He accelerated the car

   Synonym:    acceleratespeed up

3. move very fast
   1. The runner zipped past us at breakneck speed

   Synonym:    travel rapidlyhurryzip

4. travel at an excessive or illegal velocity
   1. I got a ticket for speeding

5. move fast
   1. He rushed down the hall to receive his guests
   2. The cars raced down the street

   Synonym:    rushhotfoothastenhieracepelt alongrush alongcannonball alongbucket alongbelt alongstep on it