You'd better watch your step or you'll get into trouble again.

你最好留点儿神， 免得再惹麻烦。

You're right.

你说得对。

Keep to the rules, and nothing can go wrong.

按规矩办事情就不会出差子。

Nice day, isn't it?

天儿真不错，你说呢？

It's not as bad as all that.

事情没有那么糟。

You know it isn't true.

你心里明白那不是真的。