接著說英文里的數字9

1). Heaven 
2). A Utopia of pleasure

We were floating on cloud nine.

and cloud 9 

a state of total euphoria (See also on cloud nine.)

After winning the lottery, he was on cloud nine.

The state of being out of your head because you have recently fallen "in love."

My friend Elena decided to take more calculus classes because she was out of her mind on cloud nine.

A method of increasing sensitivity to the body while under the effects of MDMA and other similar drugs. It is when someon lays on the back of someone else and runs around or walks around while the person on ecstacy closes their eyes and feels like they are floating as the air rushes past them. The person rolling that is going to be in cloud nine needs to go back to back with someone else and link there arms together. The person that is going to cloud nine then needs to leanback and have the person who is going to walk or run around pull forward. This should put the roller ontop of the persons back.

"Hey man when we get high tonight lets take a trip too cloud nine!" 

"When we get high tonight lets try out a new roll trick i learned the other day."