crack

1. V-T/V-I If something hard cracks, or if you crack it, it becomes slightly damaged, with lines appearing on its surface. 使…破裂; 破裂

A gas main had cracked under my neighbour's garage and gas had seeped into our homes. 鄰居家車庫下的煤氣主管道破裂了，煤氣滲漏進(jìn)我們家。

2. V-T/V-I If something cracks, or if you crack it, it makes a sharp sound like the sound of a piece of wood breaking. 使…噼啪作響; 發(fā)出辟裂聲

Thunder cracked in the sky. 空中雷聲炸響。

3. V-T 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. 撞擊

He cracked his head on the pavement and was knocked cold. 他的頭撞著了路面，撞昏了。

4. V-T 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. 叩開

Crack the eggs into a bowl. 把雞蛋打到碗中。

5. V-T If you crack a problem or a code, you solve it, especially after a lot of thought. 破解 (難題、密碼)

He has finally cracked the system after years of painstaking research. 經(jīng)過數(shù)年的艱苦研究，他最終破譯了該系統(tǒng)。

6. V-I If someone cracks, they lose control of their emotions or actions because they are under a lot of pressure. (精神) 垮掉[非正式]

She's calm and strong, and she is just not going to crack. 她冷靜而堅(jiān)強(qiáng)，決不會垮掉的。

7. V-I If your voice cracks when you are speaking or singing, it changes in pitch because you are feeling a strong emotion. (嗓音) 突然變化

Her voice cracked and she began to cry. 她失聲哭了起來。

8. V-T If you crack a joke, you tell it. 說 (笑話)

He drove a Volkswagen, cracked jokes, and talked about beer and girls. 那時他開著一輛大眾牌汽車，講著笑話，談?wù)撝【坪团ⅰ?/p>

V-T

1. N-COUNT A crack is a very narrow gap between two things, or between two parts of a thing. 裂縫

Kathryn had seen him through a crack in the curtains. 凱瑟琳曾從簾子的裂縫看到過他。

2. N-COUNT A crack is a line that appears on the surface of something when it is slightly damaged. 裂紋

The plate had a crack in it. 這盤子上有條裂紋。

3. N-SING If you open something such as a door, window, or curtain a crack, you open it only a small amount. 縫隙

He went to the door, opened it a crack, and listened. 他走到門邊，把門打開一條縫，聽了起來。

4. N-COUNT/SOUND A crack is a sharp sound, like the sound of a piece of wood breaking. 爆裂聲

Suddenly there was a loud crack and glass flew into the car. 突然一陣巨大的爆裂聲，碎玻璃飛濺進(jìn)了車內(nèi)。

5. N-UNCOUNT Crack is a very pure form of the drug cocaine. 強(qiáng)效純可卡因

6. ADJ A crack soldier or sportsman is highly trained and very skilful. 訓(xùn)練有素的[ADJ n]

...a crack undercover police officer. …一名訓(xùn)練有素的臥底警察。

7. N-COUNT A crack is a slightly rude or cruel joke. (挖苦人的) 笑話

Tell Tracy you're sorry for that crack about her weight. 告訴特蕾西你對那個有關(guān)她體重的玩笑感到抱歉。