关于knock的词组

Question

如题所述

Answer 1

knock off:
1)下班 He knockedoff earlier.
2)knock sth off+地点：从……把……撞倒
knock the vase off the table
3)打折 knock 10% off the price

knock over
A car knocked the boy over.
[注]如果有地点：off；无地点：over
knock out:打晕（拳击术语，把人打倒在地）

[解题过程]
knock about$#58
闲置
That's been knocking about the house for years.
那东西在房子里已经闲置几年了。
在场；活跃
She's been knocking about here for years.
她在这儿待了好几年了。
漫游；漂泊
He's knocked about Africa all his life.
他在非洲漂泊一生。

knock around
= knock about

knock back
暴饮；大口喝掉
使花费
That car knocked her back $5000.
那辆车她花了5000美元。
使吃惊，使惊奇
The news knocked him back.
这消息使他大吃一惊

Answer 2

knock at 或者是knock on 都有“敲”的意思

Answer 3

knock on the door

Answer 4

knock at