have butterflies in your stomach
US /hæv ˈbʌt.ər.flaɪz ɪn jʊər ˈstʌm.ək/
UK /hæv ˈbʌt.ər.flaɪz ɪn jʊər ˈstʌm.ək/

1.
ter frio na barriga, estar nervoso
to feel very nervous or excited about something
:
•
I always have butterflies in my stomach before a big presentation.
Eu sempre fico com frio na barriga antes de uma grande apresentação.
•
She had butterflies in her stomach on her wedding day.
Ela estava com frio na barriga no dia do casamento.