Butterflies in one's stomach “肚子里有蝴蝶” 这个短语的意思和汉语里的“七上八下”相似，用来描述某人感到紧张、忐忑不安。

例句

My interview starts in ten minutes. I've got butterflies in my stomach!

Julie has butterflies in her stomach every time Mike speaks to her.

I always get the butterflies before big speeches.

请注意

如果一个人特别外向喜欢社交，那么就可以称此人为 social butterfly.

例句

Alan goes out every night and loves meeting new people. He’s such a social butterfly.