| 释义 |
crack down
crack C0717000 (krăk)v. cracked, crack·ing, cracks v.intr.1. a. To break without complete separation of parts: The mirror cracked.b. To break or snap apart: The branch cracked off and fell.2. To make a sharp snapping sound: His knees cracked as he sat down.3. a. To break down; fail: The defendant's composure finally began to crack.b. To have a mental or physical breakdown: cracked under the pressure.4. To change sharply in pitch or timbre, as from hoarseness or emotion. Used of the voice.5. To move or go rapidly: was cracking along at 70 miles an hour.6. Chemistry To break into simpler molecules, often by means of heat or a catalyst.v.tr.1. a. To cause to break without complete separation of parts: The pebble cracked the car's windshield. See Synonyms at break.b. To cause to break with a sharp snapping sound: crack nuts.c. To crush (corn or wheat, for example) into small pieces.2. a. To strike, especially with a sharp sound: cracked the intruder over the head with a lamp.b. To cause to come into forceful contact with something, especially with a sharp sound: fell and cracked his head against the floor.3. To open to a slight extent: crack a window to let in some air.4. Informal a. To break open or into: crack a safe.b. To open up for use or consumption: crack a book; cracked a beer.c. To break through (an obstacle) in order to win acceptance or acknowledgment: finally cracked the "men-only" rule at the club.5. To discover the solution to, especially after considerable effort: crack a code.6. To cause (the voice) to crack.7. Informal To tell (a joke), especially on impulse or in an effective manner.8. To cause to have a mental or physical breakdown.9. To impair or destroy: Their rude remarks cracked his equanimity.10. To reduce (petroleum) to simpler compounds by cracking.n.1. a. A partial split or break; a fissure: cracks in the basement wall.b. A slight narrow space: The window was open a crack.c. Informal The fissure between the buttocks.2. A defect or flaw: cracks in the argument; a crack in his composure.3. A sharp snapping sound, such as the report of a firearm.4. A sharp resounding blow: gave him a crack on the head.5. A breaking, harshly dissonant vocal tone or sound, as in hoarseness.6. An attempt or try: gave him a crack at the job; took a crack at photography.7. A witty or sarcastic remark. See Synonyms at joke.8. A moment; an instant: at the crack of dawn.9. Irish Fun had when socializing; social amusement.10. Slang Crack cocaine.adj. Excelling in skill or achievement; first-rate: a crack shot; a crack tennis player.Phrasal Verbs: crack down To act more forcefully to regulate, repress, or restrain: The police cracked down on speeding. crack up Informal 1. To praise highly: He was simply not the genius he was cracked up to be.2. a. To damage or wreck (a vehicle or vessel): crack up a plane; crack up a boat.b. To wreck a vehicle in an accident: cracked up on the expressway.3. To have a mental or physical breakdown: crack up from overwork.4. To experience or cause to experience a great deal of amusement: really cracked up when I heard that joke.Idiom: crack the whip To behave in a domineering manner; demand hard work and efficiency from those under one's control.
[Middle English craken, from Old English cracian; see gerə- in Indo-European roots.]crack down vb to take severe measures (against); become stricter (with) n severe or repressive measures Thesaurus| Verb | 1. | crack down - repress or suppress (something regarded as undesirable); "The police clamped down on illegal drugs"clamp downconfine, limit, throttle, trammel, restrain, restrict, bound - place limits on (extent or access); "restrict the use of this parking lot"; "limit the time you can spend with your friends" |
Translationscrack (krӕk) verb1. to (cause to) break partly without falling to pieces. The window cracked down the middle. (使)龜裂 使断裂2. to break (open). He cracked the peanuts between his finger and thumb. 使裂開 使裂开3. to make a sudden sharp sound of breaking. The twig cracked as I stepped on it. 發出爆裂聲 发出爆裂声4. to make (a joke). He's always cracking jokes. 說笑話 说笑话5. to open (a safe) by illegal means. 以非法手段敲開(保險箱) 以非法手段砸开6. to solve (a code). 解開（密碼） 辨认（暗码） 7. to give in to torture or similar pressures. The spy finally cracked under their questioning and told them everything he knew. 因刑求等而屈服 （因压力而）垮掉，瓦解 noun1. a split or break. There's a crack in this cup. 裂縫 裂缝2. a narrow opening. The door opened a crack. 縫隙 缝隙3. a sudden sharp sound. the crack of whip. 爆裂聲 爆裂声4. a blow. a crack on the jaw. 猛擊 猛击5. a joke. He made a crack about my big feet. 玩笑 俏皮话6. a very addictive drug. He died of too much crack with alcohol (毒品)快克 上瘾的毒品 adjective expert. a crack racing-driver. 一流的 第一流的cracked adjective1. damaged by cracks. a cracked cup. 有裂縫的 有裂缝的2. crazy. She must be cracked! 瘋狂的 发疯的crackdown noun 取締，鎮壓 压迫，打击，镇压 ˈcracker noun1. a thin crisp biscuit. 薄脆餅乾 一种薄脆饼干2. a small exploding firework. fire crackers. 爆竹 爆竹3. a decorated paper tube, containing paper hats etc, which gives a loud crack when pulled apart. 彩色爆竹 彩色爆竹ˈcrackers adjective crazy. You must be crackers to believe that! 瘋狂的 发疯的crack a book, crack a book (slang) to open a book in order to read or study. He always gets high marks in his exams although he hardly cracks a textbook. （俚）打開書來看或研讀 （俚）研读 crack down (on) to act firmly against. The police have cracked down on drug dealers; to crack down on illegal immigration. 鎮壓，制裁 镇压，制裁 get cracking to get moving quickly. 快速移動 快速移动have a crack (at) to have a try at. 嘗試 试试crack down
crack down1. verb To address or control something more strictly than in the past. After years of leniency, the school is finally cracking down on plagiarism.2. noun A period of stricter control of something. When used as a noun, the phrase is usually written as one word. After years of leniency, there's finally been a crackdown on plagiarism at the school.See also: crack, downcrack down (on someone or something)to put limits on someone or something; to become strict about enforcing rules about someone or something. The police cracked down on the street gangs. They cracked down once last year too.See also: crack, downcrack downAct more forcefully to regulate, repress, or restrain. For example, The police cracked down on speeding. [1930s] See also: crack, downcrack downv.1. To increase the intensity or severity involved in preventing or regulating something: The police are cracking down on drunk driving and issuing stiffer penalties. The police cracked down after the murder last week.2. To increase the intensity or severity involved in punishing or repressing someone: The government has cracked down on protesters.See also: crack, downEncyclopediaSeecrackcrack down
Synonyms for crack downverb repress or suppress (something regarded as undesirable)SynonymsRelated Words- confine
- limit
- throttle
- trammel
- restrain
- restrict
- bound
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