n.鱼鳍,鳍状物,(汽车、飞机、炸弹上的)尾翅,散热片
vt.给…装上翅片,切除鳍
vi.潜泳,(猛烈地)拍动(鳍)
a shark's dorsal fin
鲨鱼的背鳍
The fin-ancial markets gave a muted response to the Democrats' triumph.
金融市场对民主党的胜利反响不大。
a fish's ventral fin
鱼的腹鳍