英语学习笔记：

knock somebody down 将某人给击倒在地
knock over 不小心把…撞到
knock down 漫游；漫谈，随意地谈谈
knock off 提前下班
the school of hard knocks 逆境把人锤炼成才
The boxer knocked his opponent down.
那位拳击运动员把对手击倒了。
I think I'll go and knock around in California.
我就漫游一下加州吧。
I’m going to knock off work early this afternoon.
我今天要提早下班。

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