The drug knocked him out.麻醉药使他失去了知觉。

The force of the collision knocked him out. [=knocked him cold]碰撞的力量使他晕了过去。

He hit his head against the table when he fell and knocked himself out.他倒下时头撞到桌子，失去了知觉。

He was knocked out in the third round.他在第三回合被击倒。

My team was the favorite to win the championship, but we were knocked out (of the competition) in the third round.我的球队最有希望夺冠，却在第三轮被淘汰了。

The starting pitcher was knocked out (of the game) in the fourth inning.这个队的先发投手在第四局被淘汰。

Missiles knocked out the television station.导弹击毁了电视台。

The storm knocked out electricity across the state.暴雨使得整个州的供电中断。

a musical group that just keeps knocking out hit records不断赶制流行唱片的音乐团队

They knocked themselves out trying to build a garage.他们为修个车库搞得筋疲力尽。

I knocked myself out [=I worked very hard] to get the job done on time.为了按时完成任务，我把自己累坏了。

“Do you mind if I use this exercise machine first?” “Knock yourself out.”“我可以先用一下这台健身器吗？”“尽管用。”

Her beauty just knocks me out. [=I think she is very beautiful]她的美貌令我惊叹。

Everyone was knocked out by his suggestion. [=everyone liked his suggestion very much]他的建议给每个人都留下了深刻的好印象。