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

• You'll crack up if you carry on working like this.
  你再这样干下去，身体会垮掉的。
• 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。
• Family problems made him crack up.
  家庭问题弄得他精神崩溃了。
• I'd crack up if there wasn't someone I could talk to.
  如果找不到人谈谈心我会得神经病的。
• After normalized water storage of the reservoir, the bank slope's stress field changed farther and impelled the tension crack expanding further up and down, but the outward development trend was weakened.
  库区正常蓄水后，岸坡应力场进一步发生变化，促使拉裂缝进一步向下、向上发展，但向外发展的趋势减小。
• 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。
• 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。
• Numerical examples show that high brittleness index can improve the bearing capacity stability of the structure and the existence of crack set up in advance will increase the ductility of the structure, but it may result in the reduction of ultimate bearing capacity.
  数值计算表明：增加脆性指数可以提高结构的承载稳定性；初始预制缝可以增加结构延性但会降低极限承载力。
• Analysis of crack in the up slab of a building basement
  某办公大楼地下室顶板裂缝分析
• 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；