flap的中文意思、音标与词形变化

n. 飘, 摆动, 拍打, 拍打声, 片状垂悬物 v. 拍打, 鼓翼而飞, 飘动

n. any broad thin and limber covering attached at one edge; hangs loose or projects freely n. the motion made by flapping up and down n. a movable piece of tissue partly connected to the body n. a movable airfoil that is part of an aircraft wing; used to increase lift or drag