0 to hit someone so that they become unconscious -- 击昏(某人);使(某人)不醒人事
1 If a drug or alcohol knocks you out, it makes you go to sleep. -- (药物或酒精)使(某人)入睡
2 to defeat a person or a team in a competition so that they can no longer take part in it -- (在竞赛中)淘汰(某人或某队)
The champion was unexpectedly knocked out (of the tournament) in the first round. 冠军在比赛的第一轮中被意外淘汰出局。
3 to cause enjoyment or admiration in someone -- 给(某人)留下深刻印象;使(某人)钦佩