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

• 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。
• Family problems made him crack up.
  家庭问题弄得他精神崩溃了。
• 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。
• 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
• 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》。
• It is unlikely that a crack squad set up in 2006 to investigate manipulated data will, or can, catch all offenders.
  2006年为调查人为操纵数据而组建的一个精锐小组，不太可能抓住所有违规者。
• 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。
• 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。
• 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。
• Pressure of work caused John to crack up.
  工作压力使约翰身体垮了。