A small bird flapped its wings furiously and flew off.一只小鸟用力扑扇翅膀，向上飞去。The bird was beating its wings against the sides of the cage.鸟扑扇翅膀拍击笼框。Pigeons fluttered in and out, cooing gently.鸽子们低声咕咕地叫着，扑扇着翅膀飞进飞出。The wings of the bird were beating feebly.鸟的翅膀在无力地扑扇着。