clean up phr v 1 [I,T clean sb/sth ↔ up] to make something that is very dirty clean and tidy 清理; 收拾: A lot of money has been spent on cleaning up the region's beaches. 已经花了很多钱来清理这个区的海滩。 2 [T clean sth ↔ up] to get rid of crime or dishonest behaviour in an area or organization 扫除〔罪行〕; 改掉〔不良行为〕 → see also 另见 CLEAN-UP