maillot de bain
An actress who won't appear in a bathing suit is ludicrous!
Une actrice qui refuse d’apparaître en maillot de bain, c’est ridicule !
— Day for Night (1973)
Her mother bought her a bathing suit, and she just loves it.
Sa mère lui a acheté un maillot de bain, et elle l'adore.
— Shoplifters (2018)