第一句：I'm so excited.
我太兴奋了。
A: I will go back to my hometown next week. I'm so excited.
下周我就能回家了，我太兴奋了。
B: Really? You must be missing your family very much.
真的吗？你一定很想家吧？
A: Yeah. I really miss my parents! I haven't seen them for almost two years.
是啊！我真的很想我的父母。我几乎两年没见到他们了。
B: I think they miss you too.
我想他们也想你啊！
第二句：That's fascinating.
真让人兴奋啊!
A: My boss gave me a big promotion today.
今天老板给我升职了。
B: That's fascinating.
真让人兴奋啊！
其他表达法：
It’s really thrilling.
太令人兴奋了！
That’s wonderful!
太好了！
It was kind lof exciting.
有点刺激！
I can't believe it.
我真不敢相倍。
