| 单词 | knock |
| 释义 | verb | noun knockknock1 /nɑk/ ●●● S2 W2 verb 1DOOR [intransitive] to hit a door or window with your closed hand to attract the attention of the people inside: You should knock before you come in.knock at/on I think somebody’s knocking at the door.► see thesaurus at hit12HIT/MAKE something MOVE [intransitive always + adv./prep., transitive always + adv./prep.] to hit something with a short quick action so that it moves, falls down, etc.: knock something down/over/aside etc. I accidentally knocked over the pitcher of water.knock something off/out of/from something When he turned, he knocked a picture off the wall.knock (something) against/into something Stewart’s car knocked into a pole. Huge boulders were knocked loose by the earthquake.3HIT somebody HARD a)knock somebody to the ground (also knock somebody on their rear etc.) to hit someone so hard that he or she falls down: Everyone panicked and I got knocked to the ground. b)knock somebody unconscious/senseless/silly to hit someone so hard that he or she becomes unconscious: The blast from the explosion knocked him unconscious. c)knock the living daylights out of somebody informal to hit someone many times or very hard d)knock the wind out of somebody to hit someone in the stomach so that he or she cannot breathe for a moment4HURT YOURSELF to hurt yourself by accidentally causing part of your body to hit something: knock something on/against something She knocked her head on a rock.5BALL [transitive always + adv./prep.] to hit a ball somewhere with a lot of force: Gonzalez knocked the ball out of the park.SPOKEN PHRASES6knock on wood an expression that is used after a statement about something good, in order to prevent your luck from becoming bad: I haven’t had a cold all winter, knock on wood.7knock some sense into somebody/somebody’s head informal to make someone learn to behave in a more sensible way: Maybe getting arrested will knock some sense into him.8knock somebody’s socks off (also knock 'em dead) to surprise someone very much by being very impressive: The performance knocked my socks off!9knock somebody’s block off to hit someone hard in the head or face: If you touch it, I’ll knock your block off!10knock (somebody’s) heads together to shout at or punish people who are arguing or behaving stupidly, in order to make them stop11CRITICIZE [transitive] to criticize someone or his or her work, especially in an unfair or annoying way: Some reviewers seem to knock every movie they see. “I’d never eat sushi.” “Hey, don’t knock it till you’ve tried it.”12MAKE A NOISE [intransitive] if an engine or pipes, etc. knock, they make a noise like something hard being hit, usually because something is wrong with them: Cheap gasoline will make your engine knock.13knock a hole in/through something to make a hole in something, especially a wall, by hitting it hard: You’ll need to knock a hole through the wall.14knock a nail in/through/into something to push a nail into a surface by hitting it SYN pound15knock the bottom out of something to make something such as a price much lower or weaker: A recession would knock the bottom out of corporate profits.[Origin: Old English cnocian] → see also knock/throw somebody for a loop at loop1 (2)knock around phrasal verb informal1knock somebody around to hit someone several times SYN beat: Maggie’s ex-husband used to knock her around.2knock something ↔ around to discuss and think about an idea, plan, etc. with other people SYN discuss: We knocked a few possibilities around.3knock around something to spend time in one place, or traveling to different places, without doing anything very serious or important: We spent the day just knocking around the house.4knock something around if people knock a ball around, they play a ball game such as soccer or tennis in a very informal, relaxed wayknock something ↔ back phrasal verb informal to drink a large amount of alcohol very quickly: Grace knocked back three shots of whiskey before dinner.knock down phrasal verb1knock somebody ↔ down to hit or push someone so that he or she falls to the ground: The mugger knocked her down. I got knocked down by the crowd at the concert.2knock something ↔ down to destroy a building or part of a building: They knocked down my elementary school to build a mall.3knock something ↔ down if a court knocks down a law, ruling, etc., it says that it is not correct or acceptable and cannot continue4knock something ↔ down informal to reduce the price of something by a large amount: The price of the sofa was knocked down to $300. → see also knockdownknock off phrasal verb informal1knock it off used to tell someone to stop doing something, because it is annoying you: You kids, knock it off in there!2knock off something to stop working at the end of the day: I’m going to knock off early today. What time do you knock off work?3knock something ↔ off (something) to reduce the price of something by a particular amount: We finally got the car dealer to knock a hundred dollars off the price.4knock something ↔ off something to reduce a total by a particular amount: Taking the freeway knocks 15 minutes off my commute.5knock something ↔ off to produce something quickly and easily: Could you knock off a couple of copies of the report?6knock something ↔ off to copy something, especially unfairly or illegally → see also knockoff7knock somebody ↔ off informal to murder someoneknock out phrasal verb1knock somebody ↔ out to make someone become unconscious: He knocked out his opponent in the first round of the fight. → see also knockout1 (1)2knock somebody ↔ out if a team or player is knocked out of a competition, they cannot take part anymore, especially because they were defeated: knock somebody out of something The Bulls knocked Boston out of the playoffs. → see also knockout1 (3)3knock something ↔ out to stop the supply of electricity to an area: Lightning knocked out power in the North Chicago area.4knock something ↔ out informal to produce something easily and quickly, especially so that it is not of very good quality: The factory can knock out 400 cars a week.5knock somebody out informal to make you feel surprised and full of admiration: I was knocked out the first time I heard the song.6knock yourself out informal a)to work very hard in order to do something well, especially so that you are very tired when you finish b)used to tell someone that he or she can do something if he or she wants to: “I thought I’d clean the garage.” “Knock yourself out.”knock over phrasal verb1knock somebody/something ↔ over to hit or push someone or something so that it falls to the ground: Who knocked over the vase?2knock something ↔ over informal to rob a place such as a store or bank and threaten or attack the people who work there3you could have knocked me/us over with a feather spoken old-fashioned used to emphasize how surprised you were by somethingknock somebody ↔ up phrasal verb informal to make a woman pregnant verb | noun knockknock2 ●●○ noun [countable] 1the sound of something hard hitting a hard surface: a loud knock at the door2the action of something hard hitting your body: knock on She got a knock on the head.3a repeated noise that an engine or a machine makes when something is wrong with it: a knock in the engine4a criticism of someone or something: The only knock against Whitney is his defensive playing.5take/have a knock informal to have some bad luck or trouble: Kathy’s had a few hard knocks in her lifetime. → see also the school of hard knocks at school1 (10) |
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