101、by chance(=accidentally， by accident)偶然
102、for a change换换环境(花样等)
103、charge sb. with …控告某人犯有…
104、in charge of (=responsible for) 负责(某事) in the charge of …由…管
105、take charge of (=to be or become responsible for)负责管理(照顾)
106、charge…for 因…索取(费用)， charge sb. with sth. 控告某人犯有…
107、round the clock(=all day and all night， usually without stopping) 昼夜不停地
108、comment on 评论
109、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
110、in common (和…)有共同之处，共用. be common to sb. 是与某人所共有的
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