sad sack
情緒低落的人
口語·描述悲觀者
英文釋義
someone who is constantly unhappy, pessimistic, or unlucky
例句
He's always complaining about everything—what a sad sack.
典故來源
源自20世紀美國俚語,sack比喻人,指總是悲觀倒霉的人。