双语例句：
1、worried：
All he's worried about is his own hide.
他所担心的只是他自己的生命安全。
Why did you get worried about such a thing?
你为什么对这样一件事发愁呢？
2、worrying：
Equally worrying is the low level of learning.
同样令人担忧的是学习程度较低。
You should stop worrying about it.
你该不要再为此事担忧了。
