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

• The article instructs the reason and characteristics of ground floor engineering crack and brings up the measure of prevention and control from design construction etc and explains with the example of engineering
  文章阐述了地下室工程裂缝的产生原因及特征，从设计、施工等方面提出了预防及其控制措施，并通过工程实例予以说明
• E.g.His jokes made her crack up.
  他的笑话让她大笑不止。
• The paper explores the main cause of concrete crack and comes up with the measures to control and deal with it according to concrete situation.
  文章对混凝土裂缝的主要成因进行了探讨，并针对具体情况提出了一些控制、处理措施。
• Fortune even took a crack at coming up with 11 features the Apple TV must have.
  《财富》杂志（Fortune）甚至尝试着列举了《苹果电视必备的11项功能》。
• Pressure of work caused John to crack up.
  工作压力使约翰身体垮了。
• The problem that aims at to carve the body structure wall body crack carried on a study, investigating the wall body crack output part and form, analyzing the reason of the wall body crack, tally up to prevent from the measure of the wall body crack.
  提要针对砌体结构墙体裂缝的问题进行了探讨，调查了墙体裂缝产生的部位及形式，分析了墙体裂缝的成因，总结了防止墙体裂缝的措施。
• I kept a straight face as long as I could, but I finally had to crack up.
  我尽量板着面孔，但最后还是控制不住失声大笑起来。
• 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。
• 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；
• The comedian made his audience crack up with laughter.
  喜剧演员令他的观众笑得要命。