do _ dirty work
口语·用于描述替人承担不愉快任务
例句
The manager never fires anyone himself; he always makes his assistant do the dirty work.
典故来源
源自19世纪工业革命时期，指工厂中工人被迫从事肮脏或危险的工作，后泛指替人做不光彩的事。