●clean ˈhouse to make a company, an organization, etc. more honest and efficient, for example by removing people or things that are not necessary or not wanted
清理门户（裁掉不必要的人或丢弃不需要的东西）●ˌclean up your ˈact (informal) to start behaving in a moral or responsible way
改邪归正；重新做人◆The call centre industry is trying to clean up its act and improve working conditions for staff.
呼叫中心行业正试图修正自己行业的做法，改善员工的工作条件。
●ˌclean sb ˈout (informal) to use all of sb/sth's money
用光…的钱◆Paying the fine cleaned me out.
支付罚金把我的钱花得一乾二净。●ˌclean sth ˈoutto make the inside of sth very clean or empty, for example by removing things you do not want or need
将（某物）内部彻底打扫乾净◆Staff were given no time to clean out their desks.
工作人员没有时间彻底清理自己的办公桌。◆(figurative) She's cleaned out her bank account (= taken all the money out of it).
她将银行账户里的钱全部取了出来。●ˌclean sth ˈup

1. to remove crime and immoral behaviour from a place or an activity
   清除，整顿（某地或某活动中的犯罪和不道德行为）◆The industry needs to clean up its image.
   这行业的形象需要改善。