osso duro

idiomatic masculine

困難に耐えられる人 / しぶとい人

English Meaning

(idiomatic) tough cookie (person who can endure physical or mental hardship)

Apesar das dificuldades, João provou ser um osso duro ao enfrentar cada desafio com determinação.

困難にもかかわらず、ジョアンはどんな障害にも決意を持って立ち向かうタフな人であることを証明しました.

Despite the challenges, João proved to be a tough cookie by facing every obstacle with determination.

ossos duros

（ plural ）