catch hook

例句：

1. 1. The thief caught the burglar in the act.
   这个小偷当场抓住了窃贼。
2. 2. The dog caught the ball and ran away with it.
   狗抓住了球并跑掉了。
3. 3. They caught sight of a ship passing by the harbor.
   他们看见一艘轮船经过港口。