crack up

英 [kræk ʌp]

美 [kræk ʌp]

（因精神压力大而）垮掉，崩溃; （使）大笑

柯林斯词典

• PHRASAL VERB (因精神压力大而)垮掉，崩溃
  If someonecracks up, they are under such a lot of emotional strain that they become mentally ill.
  1. She would have cracked up if she hadn't allowed herself some fun.
     她若是没给自己找点乐趣的话，早就崩溃了。
• PHRASAL VERB (使)大笑
  If youcrack upor if someone or somethingcracksyouup, you laugh a lot.
  1. She told stories that cracked me up and I swore to write them down so you could enjoy them too...
     她讲了几个令我捧腹大笑的故事，我一定要写下来，好让你也乐乐。
  2. We all just cracked up laughing.
     我们都不禁哈哈大笑起来。

英英释义

verb

• laugh unrestrainedly
  Synonym:break up
• rhapsodize about
• suffer a nervous breakdown
  Synonym:crackcrock upbreak upcollapse

双语例句

• But there was this perfect crack all the way up to the top.
  那儿一条岩缝刚好一直延伸到山顶。
• Family problems made him crack up.
  家庭问题弄得他精神崩溃了。
• The manganese sulfide inclusions to a different degree make the resistance curves of crack propagation move up or down, but there is not obvious influence on the slops of resistance curves of crack growth.
  不同程度的硫化锰夹杂使得裂纹扩展阻力曲线上下移动，而对阻力曲线的斜率无明显影响；
• If he doesn't rest he'll crack up soon.
  他要是不休息，他很快会垮掉的。
• Based on the investigation about crack instance in concrete pavement since it was open to traffic and used for several years, this paper analyzes the causation of crack, puts up some controlling measures, which has some referencing value to promote the quality of concrete pavement.
  本文针对水泥混凝土路面在开放初期以及使用几年后出现裂缝情况的调查，分析产生裂缝的原因及其控制措施，对促进混凝土路面的修筑质量，具有一定的参考价值。
• Pressure of work caused John to crack up.
  工作压力使约翰身体垮了。
• You'll crack up if you carry on working like this.
  你再这样干下去，身体会垮掉的。
• They won't crack up, no matter what you do.
  哎呀，我知道了，无论你做什么，他都不会有反映的。
• E.g.His jokes made her crack up.
  他的笑话让她大笑不止。
• The damaged windshield began to crack up all over.
  破损的挡风玻璃开始全部裂开。