The nervous feeling before something important or stressful is known as butterflies in your stomach.
to feel very nervous, usually about something you are going to do
- I had terrible butterflies in my stomach before I gave that talk in Venice.
Tôi lo lắng kinh khủng trước khi tôi trình bày bài nói ở Venice. - Why do you get butterflies in your stomach?
Tại sao bạn lo lắng quá vậy?