crack

英 [kræk] 美[kræk]

英英释义考试真题实用场景例句

近义词shot blow bang

vt. 使破裂；打开；变声
vi. 破裂；爆裂
n. 裂缝；声变；噼啪声
adj. 最好的；高明的

CET4TEM4IELTSGRE考研TOEFLCET6中低频词常用词汇

中文词源

crack 破裂声

拟声词。

词态变化

复数: cracks;第三人称单数: cracks;过去式: cracked;过去分词: cracked;现在分词: cracking;

英文词源

crack: crack: [OE] Old English had the verb cracian ‘make a sudden sharp noise’, but English did not acquire the noun crack until the 14th century. Both are of Germanic origin (modern German has the related krachen, for instance, and Dutch has kraken), and the verb’s hypothetical ancestor can be reconstructed as *krakojan. The notion of ‘sudden sharp noise’ is semantically primary (presumably it was originally onomatopoeic), and the prevalent modern sense ‘fissure’ arises from the connection between the noise of something breaking and the resultant line of fracture.
=> crock
crack (v.): Old English cracian "make a sharp noise," from Proto-Germanic *krakojan (cognates: Middle Dutch craken, Dutch kraken, German krachen), probably imitative. Related: Cracked; cracking. From early 14c. as "to utter, say, speak, talk," especially "speak loudly or boastingly" (late 14c.). To crack a smile is from 1835, American English; to crack the whip in the figurative sense is from 1886.
crack (n.): "a split, an opening," mid-15c., earlier "a splitting sound; a fart; the sound of a trumpet" (late 14c.), probably from crack (v.). Meaning "rock cocaine" is first attested 1985. The superstition that it is bad luck to step on sidewalk cracks has been traced to c. 1890. Meaning "try, attempt" first attested 1830, nautical, probably a hunting metaphor, from slang sense of "fire a gun."
At their head, apart from the rest, was a black bull, who appeared to be their leader; he came roaring along, his tail straight an end, and at times tossing up the earth with his horns. I never felt such a desire to have a crack at any thing in all my life. He drew nigh the place where I was standing; I raised my beautiful Betsey to my shoulder, took deliberate aim, blazed away, and he roared, and suddenly stopped. ["A Narrative of the Life of David Crockett, Written by Himself," Philadelphia, 1834]
Adjectival meaning "top-notch, superior" (as in a crack shot) is slang from 1793, perhaps from earlier verbal sense of "do any thing with quickness or smartness" (Johnson). Grose (1796) has "THE CRACK, or ALL THE CRACK. The fashionable theme, the go." To fall through the cracks figuratively, "escape notice," is by 1975.

双语例句

1. The drug is variously known as crack or freebase.: 这种毒品的叫法五花八门,有人称为crack,也有人叫它freebase.

2. 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。

3. In severe cases, the skin can crack and weep.: 在恶劣的条件下，皮肤可能会开裂并流脓。

4. Drug experts say it could spell the end of the crack epidemic.: 禁毒专家说它可能会结束强效可卡因吸食泛滥的局面。

5. He went to the door, opened it a crack, and listened.: 他朝门走去，打开一条门缝听着。

英英释意

1. a long narrow opening

2. a narrow opening;: "he opened the window a crack"

3. a long narrow depression in a surface

4. a sudden sharp noise;: "the crack of a whip"; "he heard the cracking of the ice"; "he can hear the snap of a twig"

5. a chance to do something;: "he wanted a shot at the champion"

6. witty remark

7. a blemish resulting from a break without complete separation of the parts;: "there was a crack in the mirror"

8. a purified and potent form of cocaine that is smoked rather than snorted

9. a usually brief attempt;: "he took a crack at it"; "I gave it a whirl"

10. the act of cracking something

考试真题

The secret to eating less and being happy about it may have been cracked years ago—by McDonald's.

Mistakes crack their self-confidence because they attribute errors to a lack of ability, which they feel powerless to change.

It may shed light on people's desire to crack a secret.

It is difficult to crack SimpliSafe as its system keeps changing.

Even if they could, SimpliSafe claims that its system is always evolving, and that it varies slightly from system to system, which means there wouldn't be a universal magic formula for cracking it.

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.

mistakes crack their self-confidence because they attribute errors to a lack of ability, which they feel powerless to change.

In some ways they're at greater risk of falling through the cracks, says researcher Vladimir Carli.

When the molten rock of the earth’s core forced its way to the surface to form the throat of a volcano, as the centuries passed, the rock cooled and hardened, shrinkingand cracking into long columns.

Three year students get first crack at course registration.

Any crack in that front could be fatal for tech companies that must operate worldwide.

At the crack of dawn, he would run up the slopes with his skis on, an unbelievably back-breaking activity.

If Apple alters the security model of future iPhones so that even its own engineers' "reasonable assistance" will not be able to crack a given device when compelled by the government, a precedent set in this case might lose its lasting force.

These are volcanoes so explosive that they burst open in a single big crack, leaving behind a vast hole, the caldera.

They had pushed the agency to designate the bird as "endangered, " a status that gives federal officials greater regulatory power to crack down on threats.

实用场景例句

The ice cracked as I stepped onto it.: 我一踩冰就裂了。

He has cracked a bone in his arm.: 他的手臂有一处骨裂。

Her lips were dry and cracked.: 她的嘴唇干裂了。

A chunk of the cliff had cracked off in a storm.: 山崖上的一块石头在暴风雨中崩塌下来。

...a crack undercover police officer...: 训练有素的便衣警察

He is said to be a crack shot, despite weak vision in one eye.: 尽管一只眼视力较弱，他仍被称为神枪手。

I often start work at the crack of dawn when there is a big order to get out.: 有大笔订单要处理时，我经常会清晨便开始工作。

The meeting was stormy, and the two sides managed only to paper over the cracks on some issues.: 会议很激烈，但双方只是在试图掩盖某些问题上的错误。

None of them is expecting any favours, just a fair crack of the whip.: 他们谁也不期望受到任何特殊照顾，只希望机会均等。

When Paul made the crack about the 'famous girl detective', I began to suspect that he had it in for you.: 当保罗挖苦你是“著名的女侦探”时，我开始怀疑他是不是故意刁难你。

She decided to head for the dormitory to take another crack at locating Blanche.: 她决定回宿舍再找找布兰奇。

Hundreds of office buildings and homes developed large cracks in walls and ceilings.: 数百栋写字楼和住宅楼的墙壁和天花板上都出现了裂缝。

Suddenly there was a loud crack and glass flew into the car...: 突然发出一声巨大的爆裂声，玻璃碎片飞进了车里。

'Crack!' — The first shot rang out, hitting Paolo.: “砰！”第一声枪响了，打中了保罗。

I should love to have a crack at the Olympia title in my last year...: 我非常愿意在我职业生涯的最后一年向奥林匹亚大赛冠军头衔发起冲击。

The plate had a crack in it...: 盘子上有一道裂纹。

He went to the door, opened it a crack, and listened.: 他朝门走去，打开一条门缝听着。

Kathryn had seen him through a crack in the curtains.: 凯瑟琳透过窗帘缝看见了他。

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。

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。

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。

Crack the eggs into a bowl.: 把鸡蛋打在一个碗中。

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。

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。

Her voice cracked and she began to cry.: 她的声音变得沙哑，继而哭了起来。

He cracked jokes and talked about beer and girls.: 他爱说笑话，喜欢谈论啤酒和姑娘。

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。

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