worry可數嗎

　　Don't worry about crossing over the tracks.

　　不用為穿過鐵道而擔心。

　　Don't worry, all the bees have been removed!

　　別擔心，所有的蜜蜂都被趕走了！

　　He does not have to worry about making a living.

　　他不用為生活發愁了。