cracks是什么意思？

cracks

v. 打开( crack的第三人称单数 )，（使…）开裂，说（笑话），开瓶；

例句

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英语四级真题

Houses built before 1939 use about 50% more energy per square foot than those built after 2000, mainly due to the tiny cracks and gaps that expand over time and let in more outside air.
出自-2010年6月阅读原文

英语六级真题

In some ways they're at greater risk of falling through the cracks,"says researcher Vladimir Carli.
2016年12月六级真题（第二套）阅读 Section C

柯林斯高阶英汉双解学习词典释义

V-ERG

(使)破裂;(使)裂开;(使)断裂

If something hard cracks, or if you crack it, it becomes slightly damaged, with lines appearing on its surface.
例句
A gas main had cracked under my neighbour's garage and gas had seeped into our homes... 邻居车库下面的煤气总管裂开了，煤气渗入了我们家。 Remove the dish from the oven, crack the salt crust and you will find the skin just peels off the fish. 把盘子从烤箱里拿出来，弄碎鱼表面的那层盐，鱼皮就会从鱼身上剥落下来了。
V-ERG

(使)发出爆裂声;(使)噼啪作响

If something cracks, or if you crack it, it makes a sharp sound like the sound of a piece of wood breaking.
例句
Thunder cracked in the sky... 空中雷声咔嚓作响。 He cracked his fingers nervously. 他紧张不安地把手指按得咔吧作响。
VERB

重击;猛击

If you crack a hard part of your body, such as your knee or your head, you hurt it by accidentally hitting it hard against something.
例句
He cracked his head on the pavement and was knocked cold. 他一头撞到人行道上，不省人事了。
VERB

打破;砸开;砸碎

When you crack something that has a shell, such as an egg or a nut, you break the shell in order to reach the inside part.
例句
Crack the eggs into a bowl. 把鸡蛋打在一个碗中。
VERB

(尤指经过反复思考)找到…的解决办法，破译(密码)

If you crack a problem or a code, you solve it, especially after a lot of thought.
例句
He has finally cracked the system after years of painstaking research. 经过多年的努力研究，他终于找到了破解这个系统的办法。
VERB

(因压力大而)失控，崩溃，瓦解

If someone cracks, they lose control of their emotions or actions because they are under a lot of pressure.
例句
She's calm and strong, and she is just not going to crack... 她镇定而且坚强，绝不会垮掉。 I had the conviction Larkin's nerve would crack and he'd squeeze the trigger in a reflex action... 我确信拉金会神经崩溃，他会反射性地扣动扳机。
VERB

(因感情强烈而嗓音)变嘶哑，变沙哑

If your voice cracks when you are speaking or singing, it changes in pitch because you are feeling a strong emotion.
例句
Her voice cracked and she began to cry. 她的声音变得沙哑，继而哭了起来。
VERB

说(笑话);开(玩笑)

If you crack a joke, you tell it.
例句
He cracked jokes and talked about beer and girls. 他爱说笑话，喜欢谈论啤酒和姑娘。
PHRASE

不如别人说的那么好

If you say that something is not all it's cracked up to be, you mean that it is not as good as other people have said it is.
例句
Package holidays are not always all they're cracked up to be. 全包旅游并不总像人们说的那么好。

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