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

• 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。
• 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
• 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。
• Family problems made him crack up.
  家庭问题弄得他精神崩溃了。
• 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。
• If he doesn't rest he'll crack up soon.
  他要是不休息，他很快会垮掉的。
• 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。
• You'll crack up if you carry on working like this.
  你再这样干下去，身体会垮掉的。