lay down the law

基本解释

I had to lay down the law, you know?
我不得不定下规矩你知道吗？
Lay down the law and tell her you will not stand for this kind of behavior.
把话讲清楚，告诉她你不会容忍这种行为。
When we were in unrest, you first cried out of surprise and then wanted to intervene to lay down the law for us.
当我们在动乱时，你们惊呼，然后要插手替我们制定律法。

My mom tried to lay down the law, but I found ways around her.
NEWYORKER: The Other Place
While we're at it, why can't Commissioner Bud Selig lay down the law on where the strike zone is?
FORBES: Fact and Comment
While seeking to dismantle a raft of regulations that have hobbled business, bureaucrats want to lay down the law on what precisely constitutes voluntary activity.
ECONOMIST: Japan