black sheep

person regarded as a disgrace or a failure by other members of his family or group 害群之马: My brother is the black sheep of the family. 我弟弟是我们家的害群之马.

black art, black box, black coffee, black comedy, black economy, black eye, Black Friar, black hole, black ice, black magic, Black Maria, black mark, black market, black mass, Black Muslim, black out, black pepper, Black Power, black pudding, Black Sash, black spot, black tie, black widow, black-beetle, black-out, black-water, blackamoor, blackball, blackberry, blackbird, blackboard, blackcurrant, blacken, blackened, blackguard, blackguardly, blackhead, blackjack, blacklead, blackleg,