snap

n. 啪地移动,突然断掉
v. 猛咬,咬断,谩骂,砰然关上

Most pine snaps as it burns.

大多数松木燃烧时都发出断裂声。

The shark snapped its jaws shut.

鲨鱼啪嗒一声把嘴合上了。