be on cloud nine
極度興奮或快樂,感覺像在云層中一樣高飛
口語·形容極度快樂或興奮
英文釋義
to be extremely happy or joyful
例句
After she got the promotion, she was on cloud nine for the whole week.
典故來源
源自美國氣象局對云的分類,第九層云是最高最厚的積雨云,象征極度的快樂和滿足。