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 damaged windshield began to crack up all over.
  破损的挡风玻璃开始全部裂开。
• The comedian made his audience crack up with laughter.
  喜剧演员令他的观众笑得要命。
• You'll crack up if you carry on working like this.
  你再这样干下去，身体会垮掉的。
• E.g.His jokes made her crack up.
  他的笑话让她大笑不止。
• Family problems made him crack up.
  家庭问题弄得他精神崩溃了。
• 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。
• 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。
• If he doesn't rest he'll crack up soon.
  他要是不休息，他很快会垮掉的。
• 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。