mop something up
phrasal verb with mop verb [ T ] uk/mɒp/ us/mɑːp/ -pp-
(CLEAN)
（用布或拖把）吸干净;用拖把擦去
to use a piece of cloth or a mop to remove liquid from the surface of something
There's milk on the floor over there - could you get a cloth and mop it up? 那边地板上有牛奶——你能拿块布把它擦干净吗？
(FINISH)
informal结束，完成
to finish dealing with something
It took a week to mop up the last of the enemy soldiers (= defeat them). 彻底消灭敌军残部花了一个星期。