keep a straight face
US /kiːp ə streɪt feɪs/
UK /kiːp ə streɪt feɪs/
1.
manter a seriedade, não rir
to succeed in not laughing or smiling
:
•
It was hard to keep a straight face when he told that ridiculous joke.
Era difícil manter a seriedade quando ele contou aquela piada ridícula.
•
She tried to keep a straight face, but a giggle escaped.
Ela tentou manter a seriedade, mas um risinho escapou.