111.keep company with (=be friendly and go out together) 和……要好
112.compare……with…… 把……与……比较
113.compare……to…… 把……比作……
114.by comparison 比较起来
115.in comparison with (=in contrast to) 和……比起来
116.compensate for (=give sth. to make up for) 补偿，赔偿，弥补 compensate sb. for sth. 赔偿，弥补
117.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)
118.comply with (=act in accordance with a demand， order， rule etc.) 遵守，依从
119.conceive of (think of， imagine， consider) 想象，设想
120.concentrate on (or upon) 集中，专心
