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| VERB |
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| /kræk/ |
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| 1 | T to damage something so that a line or long narrow hole appears on its surface , but it does not break into pieces 使裂开；使破裂；使爆裂 |
| I dropped a plate and cracked it. 我把一个盘子掉在地上打破了。 |
| She cracked several ribs and broke her arm skiing. 她滑雪时摔裂了几根肋骨，手臂也骨折了。 |
| | 1a | I if something cracks, a line or long narrow hole appears on its surface , but it does not break into pieces 破裂；裂开 | | The ice was starting to crack at the edges. 冰块的边缘开始裂开了。 | | The egg cracked open and a little chick struggled out. 蛋壳裂开了，一只小鸡挣扎了出来。 | |
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| 2 | T to deliberately break something open in order to get what is inside 打开；砸开 |
| They used a hammer to crack open the coconuts. 他们用锤子把椰子砸开。 |
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| 3 | I to make a short sudden loud noise like a small explosion 噼啪作响 |
| Thunder cracked overhead. 雷在头顶上炸响了。 |
| | 3a | T to make a whip make a short sudden loud noise 使（鞭）作响 | |
| | 3b | to deliberately pull your fingers so that they make a short loud sound 使指节噼啪作响 | |
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| 4 | T to accidentally hit a part of your body against something with a lot of force （无意地）用力撞到 |
| Dad fell and cracked his head against the door. 爸爸摔倒了，头重重地撞在门上。 |
| | 4a | T to hit someone on the head with a lot of force 猛击；敲击 | | She cracked him over the head with a saucepan. 她用一口平底锅砸他的头。 | |
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| 5 | T to solve a complicated problem or find the answer to a mystery 解决；破解；破译 |
| Detectives believe they are near to cracking the case. 侦探们认为他们已经快要侦破这个案件了。 |
| It was a code that seemed impossible to crack. 这是个看似无法破译的密码。 |
| crack it (=succeed in solving a particular problem) I’ ve been trying all morning to get this to work, and I’ ve finally cracked it. 解决；搞定 |
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| 6 | I to lose control of yourself and say or do things you would not normally say or do , for example , because you are tired or you have been threatened 失控；垮掉；崩溃 |
| Heston never cracked, even when they tortured him. 赫斯顿从来没有垮下，哪怕他们折磨他时也是一样。 |
| crack under the pressure/strain She won the game because her opponent cracked under the pressure. 由于她的对手在压力之下发挥失常，她赢得了比赛。 |
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| 7 | I if your voice cracks, it goes higher and lower , and you cannot control it , especially because of a strong emotion or because you are going to cry （尤指嗓音因情绪激动或要哭）变嘶哑 |
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| 8 | T to succeed in stopping crime or criminal activity 制裁；打击 |
| Residents are working together to crack crime on the estate. 居民正团结一致打击该地区的犯罪活动。 |
| PHRASES |
| - | crack a joke informal
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| to tell a joke |
| 说笑话 |
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| He was very relaxed, smiling and cracking jokes. 他很放松，微笑着并说着笑话。 |
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| - | crack sth open informal
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| to open a bottle or can of alcoholic drink |
| 打开某物 |
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| - | crack a safe
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| to succeed in opening a safe in order to steal what is inside it |
| 撬开保险箱 |
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| - | crack a smile mainly AMERICAN
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| to begin smiling |
| 绽露笑容 |
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| - | crack the whip informal
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| to try to make people work harder or faster |
| 鞭策 |
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| - | get cracking informal
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| to start doing something or going somewhere immediately |
| 赶快行动起来；立刻动身 |
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| We’ ll have to get cracking if we want to get there before dark. 我们如果想在天黑前赶到那儿就得赶快动身。 |
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| PHRASAL VERBS |
| - | ˌcrack ˈdown |
| PHRASAL VB |
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| | to start dealing with someone or something much more strictly 制裁；镇压；打击 | +on The school is cracking down on smoking. 学校正在严惩抽烟行为。 | |
| - | ˌcrack ˈon |
| PHRASAL VB BRITISHINFORMAL |
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| | to continue doing something as quickly as possible 继续奋力（做某事） | We really need to crack on with this painting. 我们真的需要赶紧把这幅画完成。 | |
| - | ˌcrack ˈup |
| PHRASAL VB INFORMAL |
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| 1 | I to become mentally ill 发疯；垮掉 | He just cracked up from the stress. 他压力太大就疯掉了。 | |
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| 2 | I to suddenly laugh a lot at something 放声大笑 | The girls all cracked up when they saw him. 女孩们看到他时都放声大笑起来。 | | | 2a | T crack sb upto make someone laugh a lot 使捧腹大笑 | | Little kids just crack me up with the things they say. 小孩子们说的话真的让我捧腹不已。 | | |
| | - | sth is not all it’ s cracked up to be informal
| | used for saying that something is not as good as people say that it is | | 某事物不如吹捧的那么好；某事物名不副实 | | | | | |
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