noun
(一般作 a brush-up)(Brit.)an act of cleaning or smartening oneself or something up
(英)梳洗打扮，梳理
he must want a wash and brush-up after the long journey.
一番长途跋涉之后他肯定需要好好梳洗打扮一番。
■[usu. as modifier]an act of improving one's previously good knowledge or skill at a particular thing
温习，复习
a two-day brush-up course.
两天的温习知识的课程。