I am on cloud nine.为什么?

问题描述:

I am on cloud nine.为什么?

I am on cloud nine.
我太高兴了。
I'm on cloud nine.
我太高兴了。
I was on cloud nine after I learned that I had just passed the examination.
获悉我考试及格的消息,我喜出望外。

我大约九岁了

我特别高兴、我心情好极了.
有点像中文的九霄云外,吼.