crack

crack
noun
  1. a line on the surface of something along which it has split without breaking into separate parts
    裂缝；裂口；裂纹
    a hairline crack down the middle of the glass.
    玻璃杯沿中部以下的一条极细的裂缝。
    ■a narrow space between two surfaces, especially ones which have broken or been moved apart
    缝隙；裂缝
    he climbed into a crack between two rocks.
    他爬进两块岩石间的缝隙中。
    the door opened a tiny crack.
    门开了一条小缝。
    ■(figurative)a vulnerable point; a flaw
    (喻)瑕疵；缺点
    the company spotted a crack in their rival's defences.
    这家公司发现他们对手的辩护中有个漏洞。
  2. a sudden sharp or explosive noise
    爆裂声；噼啪声
    a loud crack of thunder.
    一声炸雷。
    ■a sharp blow, especially one which makes a noise
    （尤指发出响声的）猛烈一击
    she gave the thief a crack over the head with her rolling pin.
    她用擀面杖猛击小偷的头部。
    ■a sudden harshness or change in pitch in a person's voice
    （音调的）突然变化；变粗哑
    the boy's voice had an uncertain crack in it.
    这个男孩似乎开始变声了。
  3. (informal)a joke, typically a critical or unkind one
    (非正式)笑话；俏皮话；挖苦话
    ■(Scottish & N. English)a conversation
    (苏格兰，北英格兰)聊天；谈话
    they are having a great crack about shooting.
    他们在大谈特谈射击。
  4. (亦作 craic)[mass noun](Irish)enjoyable entertainment or activity；a good time
    (爱尔兰)愉快的娱乐（活动）；开心的时间
    he loved the crack, the laughing.
    他喜欢这个开心时刻，这些笑声。
  5. [in sing.](informal)attempt to gain or achieve something
    (非正式)尝试得到（达到）
    I fancy having a crack at winning a fourth title.
    我想试试夺得第四项冠军。
    ■a chance to attack or compete with someone
    进攻机会；竞争机会
    he wanted to have a crack at the enemy.
    他希望有进攻敌人的机会。
  6. (亦作 crack cocaine)[mass noun]a potent hard crystalline form of cocaine broken into small pieces and inhaled or smoked
    强效纯可卡因
verb
  1. break or cause to break without a complete separation of the parts
    （使）开裂；（使）破裂
    [no obj.]the ice all over the bog had cracked.
    沼泽上的冰都裂开了。
    [with obj.]take care not to crack the glass.
    小心别将玻璃弄裂了。
    ■break or cause to break open or apart
    （使）爆裂；（使）破裂
    [no obj., with adverbial]a chunk of the cliff had cracked off in a storm.
    暴风雨中悬崖裂开了一大块。
    his face cracked into a smile.
    他咧嘴而笑。
    [with obj.]she cracked an egg into the frying pan.
    她将鸡蛋打入煎锅。
    ■[with obj.]break (wheat or corn) into coarse pieces
    将（麦子或谷物）磨碎
    ■(figurative)give way or cause to give way under torture, pressure, or strain
    (喻)（使）（因折磨、压力或疲惫）发狂；（使）垮下
    [no obj.]the witnesses cracked and the truth came out.
    目击者终于屈服，说出了真相。
    [with obj.]no one can crack them—they believe their cover story.
    没有人能揭穿他们——人们相信他们编造的故事。
    ■[no obj.](crack up)(informal)suffer an emotional breakdown under pressure
    (非正式)（因压力）感情崩溃
    ■[no obj.](crack up)(informal)burst into laughter
    (非正式)大笑；爆笑
  2. make or cause to make a sudden sharp or explosive sound
    使）发出尖锐（或爆裂）声
    [no obj.]a shot cracked across the ridge.
    山脊传出一声枪响。
    [with obj.]he cracked his whip and galloped away.
    他甩了个响鞭，骑马飞驰而去。
    ■[no obj.]knock against something, making a noise on impact
    （发出声音的）撞上；碰撞
    she winced as her knees cracked against metal.
    膝盖撞上金属时她蹙紧了眉头。
    ■[with obj.]hit (someone or something) hard, making a sharp noise
    （猛烈地）击打；敲打
    she cracked him across the forehead.
    她使劲敲他的额头。
    ■[no obj.](of a person's voice, especially that of an adolescent boy or a person under strain) suddenly change in pitch
    （尤指青春期的男孩或在压力下的）变声；声音嘶哑
    ‘I want to get away,’ she said, her voice cracking.
    她哑着嗓子说道，“我想走了。”。
  3. [with obj.](informal)find a solution to; decipher or interpret
    (非正式)解决；破译；解释
    the code will help you crack the messages.
    这个代码可以帮助你破译这些信息。
    ■break into (a safe)
    强行进入；砸开（保险箱）
    ■succeed in achieving
    成功获得
    he cracked a brilliant goal.
    他达到了很高的目标。
  4. [with obj.]decompose (hydrocarbons) by heat and pressure with or without a catalyst to produce lighter hydrocarbons, especially in oil refining
    （尤指炼油）（高温或压力）分解（碳氢化合物）
    [as noun cracking]catalytic cracking.
    催化性裂化。
adjective
  1. [attrib.]very good, especially at a specified activity or in a specified role
    （尤指特定活动或角色）顶呱呱的；一流的；极棒的
    he is a crack shot.
    他是个一流的枪手。
    crack troops.
    顶呱呱的部队。
常用词组
crack a book
  1. (N. Amer. informal)open a book and read it; study
    (北美，非正式)研读；学习
crack a bottle
  1. open a bottle, especially of wine, and drink it
    开瓶（尤指开葡萄酒的酒瓶）喝酒
crack a crib
  1. (Brit. archaic, informal)break into a house
    (英，古，非正式)破门而入
crack of dawn
  1. a time very early in the morning; daybreak
    黎明；拂晓
crack of doom
  1. a thunder peal announcing the Day of Judgement
    世界末日的霹雳
crack of the whip
  1. (Brit. informal)a chance to try one's hand at or participate in something
    (英，非正式)尝试机会；参与机会
    individuals who feel that they have not had a fair crack of the whip.
    感觉没有公平机会的个人。
cracked up to be
  1. [with negative](informal)asserted to be (used to indicate that someone or something has been described too favourably)
    (非正式)断定（指对某人某事某物的优点夸大地宣扬）
    life on tour is not as glamorous as it's cracked up to be.
    旅行生活并不像所吹嘘的那样迷人。
crack wise
  1. (N. Amer. informal)make jokes
    (北美，非正式)开玩笑；说笑话
get cracking
  1. (informal)act quickly and energetically
    (非正式)积极迅速地行动
    most tickets have been snapped up, so get cracking if you want one.
    大部分票都被一抢而空了，想要的话得赶快行动了。
slip (或 fall) through the cracks
  1. (N. Amer.). another way of saying slip through the net (see net)
    (北美)。 同 slip through the net （见 net）
派生
cracky
adjective
语源
  1. Old English cracian 'make an explosive noise'; of Germanic origin; related to Dutch kraken and German krachen
继承用法
crack down on
  1. (informal)take severe measures against
    (非正式)采取严厉措施；严厉打击
    we need to crack down hard on workplaces that break safety regulations.
    我们必须严惩不守安全规则的工场。
crack on
  1. (informal)proceed or progress quickly
    (非正式)快速前进；迅速进步
    we'll crack on with the second half of the job this month.
    这个月我们要加快下半部分工作的进程。
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