短语词组短语brush h up 重温;复习;重新学习;擦亮brush h up on 温习;复习brush -up 梳妆重温Wash and brush oneself up 梳洗整装brush h up on sth 复习A before dinner brush -up 餐前梳妆Brush up on technology 在技术方面充电brush up to 将 返回 brush up