他们看起来很开心，我不想惹是生非。

They seemed very happy and I didn't want to ___rock ___the ___boat.

但我们就别惹麻烦了。

But let's not ___rock ___the ___boat.

他决定直言，但又怕惹出麻烦。

He decided to speak up, but he was afraid to ___rock ___the ___boat.