raise your eyebrows
US /reɪz jʊər ˈaɪˌbraʊz/
UK /reɪz jʊər ˈaɪˌbraʊz/

1.
hausser les sourcils, manifester surprise ou désapprobation
to show surprise or disapproval by moving your eyebrows upwards
:
•
She couldn't help but raise her eyebrows at his outrageous suggestion.
Elle ne put s'empêcher de hausser les sourcils devant sa suggestion scandaleuse.
•
The news that he was getting married made everyone raise their eyebrows.
La nouvelle de son mariage fit hausser les sourcils à tout le monde.