【clean up】作为词组【打扫卫生】,后面通常接要打扫的地方或东西
eg.I have already cleaned up my room and it looks nice now.
翻译：我已经打扫好我的房间,它现在看起来可好看了.中间有个连字符哦有连字符就是作名词用eg.We have to go back to school early for the clean-up duty.翻译：我们必须早回学校去做清洁工作。