clean-up cost清污费
clean-up circuit净化回路
clean-up cell净化室
clean-up film清洁用胶片
Operation Clean-Up清理行动
Road clean-up路面清理
clean-up density净密度
Class clean-up全班大扫除
clean sth up整顿;清除罪犯和不道德分子
PHRASAL VERB（动词词组） If you clean up a mess or clean up a place where there is a mess, you make things neat and free of dirt again. 收拾干净
Police in the city have been cleaning up the debris left by a day of violent confrontation.
城里的警察一直在收拾一天的暴力冲突留下的残骸。
PHRASAL VERB（动词词组） To clean up something such as the environment or an industrial process means to make it free from substances or processes that cause pollution. 治理 (污染)
Under pressure from the public, many regional governments cleaned up their beaches.
迫于公众的压力，许多地区政府治理了海滩污染。
PHRASAL VERB（动词词组） If the police or authorities clean up a place or area of activity, they make it free from crime, corruption, and other unacceptable forms of behaviour. 整治 (犯罪、腐败和其他不良行为)
After years of neglect and decline, the city was cleaning itself up.
在多年的荒废和衰退之后，该城市在进行自我整治。
PHRASAL VERB（动词词组） If you go and clean up, you make yourself clean and neat, especially after doing something that has made you dirty. 使 (自己) 整洁
Johnny, go inside and get cleaned up.
约翰尼，进去把自己收拾收拾。