keep up

1. PHRASAL VERB （与…）齐步前进；不落后（于…）
   If you keep up with someone or something that is moving near you, you move at the same speed.
   1. She shook her head and started to walk on. He kept up with her.
      她摇了摇头开始往前走。他跟了上去。
2. PHRASAL VERB 跟上（变化等）
   To keep up with something that is changing means to be able to cope with the change, usually by changing at the same rate.
   1. ...wage increases which keep up with inflation...
      与通货膨胀同步的工资增长
   2. Things are changing so fast, it's hard to keep up.
      事情变化得太快了，很难跟上形势。
3. PHRASAL VERB 跟上（活儿、人等）；同…做（或理解）得一样好
   If you keep up with your work or with other people, you manage to do or understand all your work, or to do or understand it as well as other people.
   1. Penny tended to work through her lunch hour in an effort to keep up with her work...
      为了把活儿干完，彭妮常常午饭时间也要工作。
   2. Life is tough for kids who aren't keeping up in school.
      孩子们如果在学校里功课不好，日子就会不好过。
4. PHRASAL VERB 了解；熟悉
   If you keep up with what is happening, you make sure that you know about it.
   1. She did not bother to keep up with the news.
      她不愿花时间去了解最新消息。
5. PHRASAL VERB 继续做（或提供）
   If you keep something up, you continue to do it or provide it.
   1. I was so hungry all the time that I could not keep the diet up for longer than a month...
      我无时无刻都觉得饿，节食坚持不到一个月就放弃了。
   2. They risk losing their homes because they can no longer keep up the repayments.
      因为无力继续偿还借款，他们面临无家可归的危险。
6. PHRASAL VERB 使不减少（或降低）
   If you keep something up, you prevent it from growing less in amount, level, or degree.
   1. There will be a major incentive among TV channels to keep standards up...
      将会有重大举措鼓励各电视频道维持高标准。
   2. Opposition forces are keeping up the pressure against the government.
      反对势力在继续对政府施加压力。
7. See also: keep 23 25

1. Many people were holding down three jobs just to keep up with the Joneses.
   许多人同时做3份工作只不过是为了和别人攀比。
2. The two saleswomen were busily trying to keep up with the demand.
   那两名女售货员正忙着接待顾客。
3. The company agreed to keep up high levels of output in order to compensate for supplies lost
   这家公司同意保持高产量以弥补供货丢失带来的缺口。
4. If you don't keep up payments you could be evicted.
   如果不继续交费，你会被赶出去。
5. If homeowners can't keep up the payments, they face foreclosure
   业主如果未能按时交房贷，就会面临丧失抵押品赎回权的危险。
6. She shook her head and started to walk on. He kept up with her.
   她摇了摇头开始往前走。他跟了上去。
7. Things are changing so fast, it's hard to keep up.
   事情变化得太快了，很难跟上形势。
8. Penny tended to work through her lunch hour in an effort to keep up with her work
   为了把活儿干完，彭妮常常午饭时间也要工作。
9. Life is tough for kids who aren't keeping up in school.
   孩子们如果在学校里功课不好，日子就会不好过。
10. She did not bother to keep up with the news.
    她不愿花时间去了解最新消息。
11. I was so hungry all the time that I could not keep the diet up for longer than a month
    我无时无刻都觉得饿，节食坚持不到一个月就放弃了。
12. They risk losing their homes because they can no longer keep up the repayments.
    因为无力继续偿还借款，他们面临无家可归的危险。
13. There will be a major incentive among TV channels to keep standards up
    将会有重大举措鼓励各电视频道维持高标准。
14. Opposition forces are keeping up the pressure against the government.
    反对势力在继续对政府施加压力。
15. She began to walk faster, but he lengthened his stride to keep up with her
    她开始加快步子，但他加大了步幅跟着她。
16. She was skipping to keep up with him.
    她连蹦带跳地走着，好跟上他的步伐。
17. He lengthened his stride to keep up with her.
    他迈大步追上她。
18. I had to run to keep up to the girls.
    我得跑去追上那些女孩。
19. We are very anxious to keep up the reputation of the firm.
    我们对于保持商号的名誉非常急切。
20. We must keep up with the times.
    我们必须跟上时代前进的步伐。
21. Keep up with the others and don't straggle.
    跟上其他人，别落伍。
22. Though they graduated from the university ten years ago, all the classmates try to keep up with one another.
    虽然他们已从大学毕业十年了，但所有的同班同学都设法相互保持联系。
23. He can't keep up with others in his work.
    他干活儿跟不上趟儿。
24. The meat prices keep up to last month's level.
    肉价与上月一样高。
25. Move your young legs faster and keep up with the teacher.
    小腿儿捯快点儿跟上老师。
26. Would you slow down? I can't keep up!
    你走慢点儿行不行，人家跟不上啊！
27. I still keep up my acquaintance with him.
    我仍然和他保持朋友关系。
28. The surviving sailors managed to keep up for several hours and were eventually picked up by a lifeboat.
    那些幸存的船员设法在水面浮了几个小时，终于被救生艇救了起来。
29. The work is too difficult for me and I am not able to keep up.
    工作太困难了，我难以赶上别人。
30. The Joneses set the pace and their neighbors try to keep up with them.
    琼斯一家带了头，邻居们尽力赶上他们。

verb

1. prevent from going to bed at night
   1. The anticipation of the trip kept the children up all night
   2. I kept myself up all night studying for the exam

2. keep informed
   1. He kept up on his country's foreign policies

   Synonym:    keep abreastfollow

3. maintain a required pace or level
   1. He could not keep up and dropped out of the race

4. keep in safety and protect from harm, decay, loss, or destruction
   1. We preserve these archeological findings
   2. The old lady could not keep up the building
   3. children must be taught to conserve our national heritage
   4. The museum curator conserved the ancient manuscripts

   Synonym:    conservepreservemaintain

5. lengthen or extend in duration or space
   1. We sustained the diplomatic negotiations as long as possible
   2. prolong the treatment of the patient
   3. keep up the good work

   Synonym:    prolongsustain