pouncing

1.The teacher pounced on the pupil's mistake.

教师抓住了学生的错误。

2.The bird pounced on the worm.

鸟突然扑过去把虫攫住。

3.He said something silly and the other boys pounced on it at once.

说了句傻，遭到了其男孩的嘲。