knock短语搭配

knock短语搭配是：
knock on 撞击；敲击（门、窗）。
knock at 敲（门、窗等）。
knock off 击倒；停工；中断。
knock down 击倒；拆卸。
knock out 敲空；击倒；打破。

他头部遭到重重一击。

There was a sharp knock on the door、

敲门声大作。

No sooner had I sat down than there was a loud knock on the door、

我刚坐下就有人大声敲门。

He went up the garden path to knock on the door、

他穿过花园小径去敲门。

If you haven't made an appointment, take pot luck and knock on the door

如果你没有预约，就敲门试试运气吧。