fortitude

n. /ˈfɔːrtɪtuːd/ C2

坚毅；刚毅

Courage and endurance shown when facing pain or trouble.

仙境例句

The little Mouse showed great fortitude, swimming on through the salt water without a word.

小老鼠表现得十分坚毅，一声不吭地在咸水里游个不停。