我高兴得要飘起来了。
10. I'm as happy as Larry./I'm as happy as a sand boy.
我非常快乐。
11. I'm in a great mood today.
我今天心情很好。
12. I lucked out today./I'm in luck today.
今天的运气真好。
13. I'm on top of the world.
我太高兴了。
14. The two of them are in high spirits when they think about the future.
他们两个兴致勃勃地畅想未来。
15. He was over the moon at the good news.
听到那个好消息他高兴极了。