knock out

• 动词短语，指使人失去意识（击倒），或在比赛中淘汰某人，也指快速轻松地做出或完成某事。

A phrasal verb used to indicate rendering someone unconscious, eliminating someone from a competition, or producing something quickly and effortlessly.

不可数 · 及物 · 短语动词，可分

1. Render unconsciousinformal

   To hit someone so hard that they become unconscious.

   击昏

   • The boxer knocked out his opponent in the third round.
   • He was knocked out by a single punch.
   • The fall knocked him out cold.

   同义词floorkayolay output outstun

2. Eliminate from competitioninformal

   To defeat someone or a team so that they cannot continue in a competition.

   淘汰出局

   • The underdog team knocked out the champions in the first round.
   • She was knocked out of the tournament in the semifinals.
   • The injury knocked him out of the race.

   同义词beatdefeatdismissejecteliminateoustput outsend packing

3. Exhaust or tireinformal

   To make someone extremely tired or exhausted.

   使筋疲力尽

   • The long hike knocked me out completely.
   • Working double shifts knocked her out.
   • The heat knocked out the entire team.

   同义词drainenervateexhaustfatiguetire outwear outweary

   反义词energizeinvigoraterefreshrevivestimulate

4. Produce quicklyinformal

   To produce or complete something quickly and efficiently.

   快速完成

   • The artist knocked out a sketch in ten minutes.
   • She knocked out the report before lunch.
   • He can knock out a song in an hour.

   同义词bang outchurn outcrank outdash offthrow togetherturn outwhip up

基本动词knock