[口语] '你来定'只会用 it's up to you? 来学个更酷的

Your wish is my command

类似的短语，'悉听尊便' 我们还可以说：

1. Anything you say.

悉听尊便；你说的任何事我都听你的。

例句：

Could you turn the music down a little bit? 

你可以把音乐关小声一点吗？

B: Oh, sure. Anything you say. 

喔，好啊，就听你的。

2. That's your call.

你决定；这个你说了算。

3. You have the final say.

You'd be insane to let him have the final say.

要是由他来作最后决定，你会疯的。