knock out

基本解释

He's not a very accomplished pianist, but he can knock out a tune.
他不是一个造诣很深的钢琴家，但他可以胡乱演奏一曲。
When boxing, do not expect to have the first punch be a knock out.
在拳击比赛中，不要指望第一拳就将对手击倒在地。
In these experiments, which have yet to be published, he uses an antibiotic injection to knock out the hair cells devoted to balance.
他在这些尚在整理出版的试验中，使用了一种抗生素注射剂来破坏保持平衡的毛细胞。

This was no Saint Francis with enough time to knock out a few canticles or to preach to the birds or do any of the other endearing things so close to Franny Glass's heart.
圣人弗朗西斯没有足够的时间去,来唱颂歌或者向鸟儿告解或者做任何,其他讨喜的事情，正合弗兰尼的心意。
耶鲁公开课 - 1945年后的美国小说课程节选
If I can't, I want to knock him back, because what I really need to do is to get him out of the way.
如果杀不了,我就要把他击退,因为我真正的目的是把他从这条线路上推开
耶鲁公开课 - 古希腊历史简介课程节选
He can belt you with that shield, and if he's stronger than you are, or better prepared or more balanced than you are, he could knock your shield out of your hand.
他能用盾牌猛击,如果他比你强壮,或准备充分,或平衡能力比你强的话,他能将你的盾牌击飞
耶鲁公开课 - 古希腊历史简介课程节选

However fun it is to make a knock out logical point of such inanity.
FORBES: Three responses to Noahpinion

To knock someone out means to cause them to become unconscious or to go to sleep.
If a person or team is knocked out of a competition, they are defeated in a game, so that they take no more part in the competition.
&rarrsee also knockout
If something is knocked out by enemy action or bad weather, it is destroyed or stops functioning because of it.