1. by chance(=accidentally, by accident)偶然

2. for a change换换环境(花样等)

3. charge sb. with …控告某人犯有…

4. in charge of (=responsible for) 负责(某事) in the charge of …由…管

5. take charge of (=to be or become responsible for)负责管理(照顾)

6. charge…for 因…索取(费用) , charge sb. with sth. 控告某人犯有…

7. round the clock(=all day and all night, usually without stopping) 昼夜不停地

8. comment on 评论

9. commit oneself to 使自己承担… commit sb. to prison把某人送进监狱; commit one’s idea to writing 把某人的想法写下来; commit a matter to a committee 把某事交给委员会讨论

10. in common (和…)有共同之处,共用. be common to sb. 是与某人所共有的

11. keep company with (=be friendly and go out together) 和…要好.

12. compare…with … 把…与…比较

13. compare…to… 把…比作…

14. by comparison 比较起来

15. in comparison with (=in contrast to) 和…比起来

16. compensate for (=give sth. to make up for) 补偿, 赔偿,弥补 compensate sb. for sth. 赔偿,弥补

17. complain of (or about)抱怨;诉苦;控告;complain about 抱怨某人或事情; complain to sb. about sth. (or sb.) 向某人抱怨…; complain (抱怨); complement (补充); compliment (恭维)

18. comply with (=act in accordance with a demand, order, rule etc.) 遵守, 依从

19. conceive of (think of, imagine, consider) 想象,设想

20. concentrate on (or upon) 集中,专心