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

• If he doesn't rest he'll crack up soon.
  他要是不休息，他很快会垮掉的。
• Pressure of work caused John to crack up.
  工作压力使约翰身体垮了。
• Expression for fatigue crack life is set up which takes energy of plastic deformation for crack propagation as the damage variable.
  建立以裂纹扩展塑性变形能为损伤变量的疲劳裂纹寿命表达式。
• E.g.His jokes made her crack up.
  他的笑话让她大笑不止。
• 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；
• 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。
• Cyril is going to crack up If he does not stop working so hard.
  如果西里尔继续这样拼命工作，他会垮下来的。
• As our researchers found that when people comes to their middle and old age, most of them can't have a high-quality sleep because their body diathesis decline and the physiological function slowly crack up.
  因为我们的科研人员发现，人到中老年，随着身体素质的下降和生理机能的渐衰，一般睡眠质量都不高。
• The damaged windshield began to crack up all over.
  破损的挡风玻璃开始全部裂开。
• 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。