knock:[ nɔk ]
n.敲,敲打,敲门
v.敲击,互撞,攻击
Examples:
1.He knocked a big hole in the wall.
他把墙撞出了一个大洞.
2.Did you hear the knocks at the door?
你听到敲门声了吗?
3.Someone is knocking at the door.
有人在敲门.
4.I often feel that politicians should have their heads knocked together,like naughty children.
我时常觉得应该像教训淘气孩子那样让政治家停止争吵.
5.She knocked the bottom out of our argument.
她把我们的论点驳得体无完肤.
6.Knock it off,kids,I'm trying to sleep!
孩子们,别闹了,我要睡觉了!