Don't bother him.

不要打扰他。

How's your sister?

你的嫂嫂好吗？

I know he will understand your letter.

我知道他会明白我的信。

I wonder if you agree with my point of view.

我不知道你是否同意我的观点。

If you attend the formal dancing party, what would you wear?

如果你参加隆重的舞会，你会穿什么衣服？

It's a large town.

这是一个很大的乡镇。