translation.en: Now, both talking and breathing has a mortal enemy, and that enemy is laughter, because what happens when you laugh is those same muscles start to contract very regularly, and you get this very marked sort of zig-zagging, and that's just squeezing the air out of you.
translation.zh: 然而，无论是说话还是呼吸 都有一个致命的敌人， 那就是「笑」。 因为当你在笑的时候， 刚才那些肌肉全都开始频繁地收缩， 因此你就会产生这种 非常明显的锯齿状， 而这个过程只会把空气排出你的身体。