I'll have to watch the time. I need to leave early today.

我得看着点时间。今天我要早走。

You have to watch the time.

你要注意时间。

Watch the time near December 10 for a parent to step up and help you if you need his or her assistance and financial support.

注意临近12月10号的时间，在你需要的时候，父亲或母亲将给你提供帮助或财务支持。

I still hadn't wound my watch so I didn't know the time.

我还没给手表上发条，所以我不知道时间。

The watch (that) you gave me keeps perfect time.

您给我的那只表走得很准。