“三分鐘熱度”英文怎么說？

3-minute passion is a Chinese saying which refers to a person having a limited passion or a passion that doesn't last long toward something/someone that he/she liked/loved/had passion about.

“三分鐘熱度”是個中國俗語，指的是一個人對他喜歡、或者有熱情的人或事物只能保持有限或短暫的熱情。

例句：

A: I would like to learn piano therefore I will need to buy one.

B: Oh, I suggest that you think carefully before you buy one as you are always a '3-minute passion' person.

A：我想學鋼琴，所以得買一架。

B：哦，我建議你買之前要仔細考慮，因為你經常只有三分鐘熱度。