I'm on the top of the world！

我太高兴了！

口语

on the top of the world非常高兴（感觉自己站在世界之巅）

walk on air 高兴得飘飘然了， 感觉都要腾云驾雾了

I'll have three days vocation soon. I'm on the top of the world.

我马上就有三天的假期， 我太开心了。

Look， she is walking on air since she got promoted.

看， 自从她升职后每天都飘飘然的。

Linda finally promised to get married with me. Oh, I'm on the top of the world！

琳达终于答应和我结婚了， 我太开心了！

Happy birthday to you Here's the gift for you. 生日快乐，这是给你的礼物。

Thank you so much. I feel like I'm walking on air.

太谢谢了， 我感觉自己都高兴得飘飘然了。