on top of the world
非常高興或滿足的狀態
口語·表達極度快樂
英文釋義
extremely happy or successful
例句
After winning the lottery, she felt on top of the world.
典故來源
源自20世紀英語,top of the world指世界之巔,比喻極度的快樂或成功感,如登頂般滿足。