brush up

名词 brush up:

1. practice intended to polish performance or refresh the memory
   同义词：review, brushup

动词 brush up:

1. refresh one's memory
   同义词：review, refresh
2. bring to a highly developed, finished, or refined state
   同义词：polish, round, round off, polish up

1. I hadn't thought that we would brush up against so much opposition in this town.
   我没有想到我们会在这个城里遭到这么多的反对。
2. Brush up your shoes.
   把你的鞋子刷干净。
3. I must brush up (on) my Italian before I go to Rome.
   我去罗马以前必须把意大利语重温一下。
4. I must brush up my English before I go to London.
   去伦敦之前，我必须好好温习一下英文。