| 释义 |
brush up（on）
1．review （a skill，knowledge）one has learned in the past 重新学习；复习
*I'll have to brush up my English before I go abroad．出国前我要温习一下英语。
*He said he had to brush up on his history before the examination．他说他得在考试前复习历史。
2．make clean or bright with a brush 刷净；擦亮
*Your boots should be brushed up a bit．你的长统靴该搽搽亮。 |