时间: 2025-04-25 00:40:45
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:2025-04-25 00:40:45
字面意思:
“Crack” 字面意思是指一种裂缝、裂口或缺口,通常是由于压力、冲击或老化造成的。
清晰定义:作为动词时,表示打破或打开某物(如物体或代码);作为名词时,指裂缝或缝隙。
词性:
词源分析:
“Crack” 源自古英语“cracian”,意为“打破、破裂”。其词根“crack”与相关的印欧语根“*ker-”有联系,意味着“切、破”。
历史背景:
该词最早的使用可追溯到14世纪,常见于描述物体物理状态的文学作品中。
课本:
在**的英语教材中,可能出现在初中或高中的阅读理解部分。在牛津和美国的教材中,特别是初高中阶段,可能用于科学、文学或日常对话中。
正式与非正式语境:
在正式场合中,“crack”常用于描述技术问题(如计算机安全);在非正式场合中,它可以用来描述破裂的物体或心情的变化。
特殊场合:
The vase fell and made a crack on the floor.
花瓶掉落在地上,地板上出现了一条裂缝。
He tried to crack the code but failed.
他试图破解密码,但失败了。
There is a crack in the window that needs to be fixed.
窗户上有一条裂缝需要修理。
The team is a crack unit known for their expertise.
这个团队是一支以专业知识著称的精英小组。
The police decided to crack down on illegal activities in the area.
警方决定对该地区的非法活动进行打击。
同义词:
反义词:
音标记忆法:
可以用音标 /kræk/ 来帮助记忆,联想“crack”发音接近“抓破”的动作。
谐音联想记忆:
“Crack”可以联想为“抓开”,想象用手抓住某物使其破裂的动作。
通过上述分析,学*者可以更全面地理解和应用“crack”这个单词。
[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。