I always have butterflies in my stomach before exams请问这里的butterflies在句中怎么翻译呢?

题目

I always have butterflies in my stomach before exams请问这里的butterflies在句中怎么翻译呢?

答案

have butterflies in one's stomach.
have a nervous feeling in one's stomach before doing sth.
做某事前心慌,紧张.