歡天喜地;心滿意足;非常自豪
牛津電影裡 100%
very happy or proud
You can't talk about feeling intimidated when you're on top of the world. It's unseemly.
Rockin on top of the world Lift your spirits swing that girl
釋義來自《牛津高階英漢雙解詞典》第 9 版