Let sleeping dog lie.

别惹麻烦。

Stay out of trouble.

不要惹事生非。

Don't go looking for trouble.

别没事找事。

Don't trouble troubles till trouble troubles you!

不要自找麻烦，除非麻烦来找你。

Don't ask for trouble. You'd better run away.

你最好还是走吧，别自找麻烦！

Don't always try to start something when everything is running smoothly.

当一切都进行得很顺利时，不要总想惹是生非。

My brother is ill-tempered, and always stirs up trouble.

我弟弟的脾气很暴躁，常惹是生非。

We decided not to accuse them for fear it will cause trouble.

我们决定不起诉他们,免得惹是生非。

If you don't learn how to keep your nose clean, you will end up in jail.

如果你再惹是生非，你总有一天会坐牢的。

I don't want to make trouble, and I just give some advice.

我不是想惹是生非，只是提些建议。