knock out的读音是：英[nɒkaʊt]。knock out的意思是敲空；击倒；打破；使筋疲力竭。knock out【近义词】drug毒品。
一、词典解释点此查看knock out的详细内容
1.使不省人事；使入睡
Toknock someoneout means to cause them to become unconscious or to go to sleep.
e.g. He was arguing with his girlfriend and she hit him with a frying pan! Nearly knocked himout...
他和女友争吵时女友竟拿煎锅砸他！几乎把他砸晕了过去。
e.g. The three drinks knocked himout...
3杯酒就让他昏昏入睡了。
2.击败；淘汰
If a person or teamis knocked out of a competition, they are defeated in a game, so that they take no more part in the competition.
e.g. Henri Leconte has been knockedout in the quarter-finals of the Geneva Open...
亨利·勒孔特在日内瓦公开赛四分之一决赛中被淘汰。
e.g. The Irish came so close to knocking Englandout of the European Championships.
爱尔兰队险些将英格兰队从欧锦赛中淘汰出局。
3.摧毁；使瘫痪
If somethingis knocked out by enemy action or bad weather, it is destroyed or stops functioning because of it.
e.g. Our bombers have knockedout the mobile launchers...
我们的轰炸机摧毁了移动火箭发射台。
e.g. A storm has made roads treacherous and knockedout power.
一场暴风雨致使公路隐患重重且电力瘫痪。
二、网络解释
1. 击倒：90年代中期,FOSTER等以基因击倒(knockout)的整形技术,获得缺失blrl(blrl-1-)的小鼠,并发现食道癌这种小鼠缺少髂淋巴结,不形成或只形成部分形态不正常的派伊尔氏小结,同时,淋巴两性细胞游走到脾脏滤泡的过程受到严重损坏,
2. 敲空;(拳击中)击倒：knock off 把...敲掉;击倒;停工 |knockout 敲空;(拳击中)击倒 | know about 了解,知道...的情况
3.knock out：ko; 击倒
三、例句
I heard him knock out his pipe on the mantelpiece.
我听到他在壁炉上敲出烟灰的声音。
Please see the pattern he has hammered out.
请参看他敲出的这个模子。
He was defeated with a knock out.
他被击倒出局。
The brick connected on her head, knocking her out.
砖击中了她的头部并把她击倒了。
His hopes were nearly snuffed out.
他的希望几乎都被打破了。
He broke the window so that he could shoot out.
他打破了窗户，便可以向外开枪了。
He smiled, and his smile revealed the loss of two front teeth, knocked out by the butt-end of a gun at Ismail.
上尉答道，他的鼻子涨红了，面露微笑，微笑时张开他在伊兹梅尔城下被枪托打落两颗门牙的缺口。
The other boxer put Jim out in the third round.
第三个回合拳击手将吉姆打昏了。
The pit-prop fell on his head and knocked him out.
坑木掉在他头上，把他打昏过去。
四、词汇搭配
knock out的相关近义词
drug、exhaust、tire、snow、kayo、knock cold
knock out的相关临近词
Knocke、knock、knock about with、knock up against、knock the end in、knock down price、knock into sb.、knock-out core、knock-out grid、knock-compound、knockdown prices、knockdown import