have butterflies (in your stomach)

成語所屬單字butterfly

have butterflies (in your stomach) — 慣用語

1. To feel nervous or anxious, especially before an important event.

1.慣用語
釋義

心裡七上八下

To feel nervous or anxious, especially before an important event.

例句

Maya had butterflies in her stomach before her piano recital.

Do you get butterflies before giving a speech?