时间: 2025-04-24 11:59:21
美: [kræk]
英: [kræk]
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
最后更新时间:2025-04-24 11:59:21
词源分析：Crack源自古英语“cracian”，意为“发出破裂声”。词根“crack”暗示了破裂或断裂的特性。
历史背景：该词的首次使用可以追溯到14世纪，常用于描述声响或物体的破裂。
课本：在*，Crack可能出现在初中或高中英语教材中，尤其是在阅读理解和词汇练中。国际上，如牛津和美国的教材中，可能在5-8年级的英语学*中使用。
正式与非正式语境：
特殊场合：
The vase fell and a crack appeared on its surface.
瓶子掉落，表面出现了裂缝。
He cracked the code after many attempts.
他经过多次尝试破解了代码。
The team is known for its crack performance in the tournament.
该队以在比赛中的出色表现而闻名。
She told a joke that made everyone crack up.
她讲了一个笑话，让大家捧腹大笑。
The government decided to crack down on illegal activities.
政府决定严厉打击非法活动。
*. A crack in the wall could indicate a structural issue.
墙上的裂缝可能表明结构问题。
The ice began to crack as the sun warmed it up.
随着太阳的升温，冰开始破裂。
He has a crack habit that he is trying to overcome.
他有一个吸食毒品的*惯，正试图戒掉。
After the argument, their friendship began to crack.
争吵后，他们的友谊开始出现裂痕。
The thief managed to crack the safe and steal the valuables.
盗贼成功打开了保险箱并偷走了贵重物品。
同义词：
反义词：
这样，通过多种方式和场景的分析，可以更全面地理解和记忆“crack”这个词。
[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
例：A gas main had cracked under my neighbour's garage and gas had seeped into our homes.邻居家车库下的煤气主管道破裂了，煤气渗漏进我们家。
[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…噼啪作响; 发出辟裂声
例：Thunder cracked in the sky.空中雷声炸响。
[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. 撞击
例：He cracked his head on the pavement and was knocked cold.他的头撞着了路面，撞昏了。
[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. 叩开
例：Crack the eggs into a bowl.把鸡蛋打到碗中。
[V-T] If you crack a problem or a code, you solve it, especially after a lot of thought. 破解 (难题、密码)
例：He has finally cracked the system after years of painstaking research.经过数年的艰苦研究，他最终破译了该系统。
[[非正式]] If someone cracks, they lose control of their emotions or actions because they are under a lot of pressure. (精神) 垮掉
例：She's calm and strong, and she is just not going to crack.她冷静而坚强，决不会垮掉的。
[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) 突然变化
例：Her voice cracked and she began to cry.她失声哭了起来。
[V-T] If you crack a joke, you tell it. 说 (笑话)
例：He drove a Volkswagen, cracked jokes, and talked about beer and girls.那时他开着一辆大众牌汽车，讲着笑话，谈论着啤酒和女孩。
[N-COUNT] A crack is a very narrow gap between two things, or between two parts of a thing. 裂缝
例：Kathryn had seen him through a crack in the curtains.凯瑟琳曾从帘子的裂缝看到过他。
[N-COUNT] A crack is a line that appears on the surface of something when it is slightly damaged. 裂纹
例：The plate had a crack in it.这盘子上有条裂纹。
[N-SING] If you open something such as a door, window, or curtain a crack, you open it only a small amount. 缝隙
例：He went to the door, opened it a crack, and listened.他走到门边，把门打开一条缝，听了起来。
[N-COUNT/SOUND] A crack is a sharp sound, like the sound of a piece of wood breaking. 爆裂声
例：Suddenly there was a loud crack and glass flew into the car.突然一阵巨大的爆裂声，碎玻璃飞溅进了车内。
[[ADJ n]] A crack soldier or sportsman is highly trained and very skilful. 训练有素的
例：...a crack undercover police officer.…一名训练有素的卧底警察。
[N-COUNT] A crack is a slightly rude or cruel joke. (挖苦人的) 笑话
例：Tell Tracy you're sorry for that crack about her weight.告诉特蕾西你对那个有关她体重的玩笑感到抱歉。