check up on 校对

cheer up 振作;鼓励

chew the rag 唠叨不断

chip in 集资;捐款

clean sweep 全胜

clean the house for sb 和某人算帐

clock watcher 盼望下班的人

close shave (close call) 千钧一发

coast is clear 没有危险了

coin a neat phrase 话说得很恰当

cold fish 冷酷无情的人

Columbus discovered America 陈年旧事

come about 发生

come across 偶然遇见

come along with 随同

come and get it 试试拿走它吧

come down with 病倒

come in 起作用;有份

come in handy 迟早有用

come into the world 出世

come off it 吹牛皮

come on 别这样

come on 来吧!(提醒、催促)

come on strong 非常积极的给人以好印象

come out right 事情进展顺利

come out with 说出