C
n.打扫；卫生扫除；（对犯罪等的）铲除，整顿
n.打扫；卫生扫除；（对犯罪等的）铲除，整顿
第三人称复数：clean-ups
词典解释
1. 打扫;清洗;肃清;整顿
A clean-up is the removing of dirt, pollution, crime, or corruption from somewhere.
e.g. ...the need for a clean-up of Italian institutions...
对意大利各机构进行整顿的必要性
e.g. The Governor has now called in the National Guard to assist the cleanup operation.
总督已经调动了国民卫队协助清剿行动。