1. 拍掉灰尘：brush cut 平头发型 | brush down 拍掉灰尘 | brush fire 灌木丛之火灾

2. 刷净：Brush up 擦拭 | Brush down 刷净 | Dry brush 干刷

3. 拍掉或擦掉灰尘：brush displacement || 刷移角 刷位移 | brush down || 拍掉或擦掉灰尘 | brush drawing || 毛笔画

4. 刷干净[俗]责备 谴责：brush cut 一种男人发型(似平头) | brush down 刷干净[俗]责备 谴责 | brush off 刷掉 掸去拒绝接见 驱逐[俗]漠视[俚]走开, 离开(常用于祈使句)

verb

1. reprimand

e.g. She told the misbehaving student off

Synonym: tell off