Question

knock out是什么意思

Answer 1

knock out
用锤等敲掉; 打掉
He knocked the nail out.
他把钉子敲了出来。
He knocked his pipe out before refilling it.
在装烟丝之前, 他磕出了烟斗里的烟灰。
使昏迷
The drug knocked him out.
麻醉药使他昏迷了。
The medicine knocked him out.
这种药使他昏了过去。
击倒
Joe knocked his opponent out in the first round of the contest.
乔在比赛第一回合中就把对方击倒了。

Answer 2

词典结果：
knock out[英][nɔk aut][美][nɑk aʊt]
淘汰; 击败; 出局; 使不省人事;