He's on cloud nine.

他的心已飞到九霄云外。

youdao

When Michael was born I was on cloud nine.

迈克尔出生的时候，我都乐得找不着北了。

youdao

He was on cloud nine after winning the competition.

他在比赛胜利后欣喜若狂。

youdao

They were in seventh heaven. They were on cloud nine.

VOA: special.2009.07.26

Mr Stanley, 21, said he was "on cloud nine" and that mother and baby are due to be released from hospital later.

BBC: West Malling train baby and mother 'doing really well'

After his first day of work and barely having lifted a finger, Ulysses is on cloud nine: He has been promised retirement at 65 with medical insurance guaranteed.

FORBES: Ulysses S. Allgood: Fiscally Irresponsible College Kid And Model For His Country

Maloney was then brought down in the box for a second time for a penalty which this time was converted by substitute McCourt to put Celtic on cloud nine.

BBC: Celtic 9-0 Aberdeen