crack up
phrasal verbcrack up (informal)
- to become ill, either physically or mentally, because of pressure
（因压力造成身体或精神）垮掉，崩溃 - You'll crack up if you carry on working like this.
你再这样干下去，身体会垮掉的。 - He thought he'd never get through the ordeal without cracking up.
他觉得自己即使能躲过这一劫也要变疯了。
- You'll crack up if you carry on working like this.
- to start laughing a lot
开始大笑起来 - He walked in and everyone just cracked up.
他一进来，人人都捧腹大笑起来。
- He walked in and everyone just cracked up.
crack somebody up
- (informal) to make somebody laugh a lot
使大笑起来 - Gill's so funny —she just cracks me up.
吉尔滑稽极了，逗得我哈哈大笑。
- Gill's so funny —she just cracks me up.