Ask是问，Moon是月亮，那你知道Ask for the moon是什么意思吗？

I ask you

首先，看个例句：

That silly man, I ask you, who does he think he is? 

那个傻子，他以为他是谁啊？

Ask her out

例句：

I don't know how to ask her out. 

我不知道怎么约她出来。

Ask for the moon

例句：

He might as well ask for the moon.

他简直就是异想天开。

For the asking

例句：

We had it all, just for the asking. 

只要开口，要什么有什么。 

You have good unity in your group, and success will be yours for the asking. 

你们一组人，个个团结，干起事来，马到成功。