A clean-up is the removing of dirt, pollution, crime, or corruption from somewhere.
例句
...the need for a clean-up of Italian institutions...對意大利各機構進行整頓的必要性The Governor has now called in the National Guard to assist the cleanup operation.總督已經調動了國民衛隊協助清剿行動。
英漢詞典釋義
n.
清掃;清除 (污染物);清理;整頓
The plan for a citywide cleanup was the mayor’s baby.全市性的清掃計劃是市長的得意之作。
英英詞典釋義
Noun
1. a very large profit
2. (baseball) the fourth position in the batting order (usually filled by the best batter on the team)