flapsn.襟翼名词flap的复数形式.flapn.拍打；拍打声；片状垂悬物；副翼；<口>不安v.拍打；鼓翼而飞flapping articulation水平关节,挥舞铰(联接)flap-shaped incision瓣状切开flap-type attenuator刀型衰减器flapping-wing flying扑翼飞行flapping-wing motion拍翼运动flapping- wing flight扑翼飞行flapping-wing aircraft扑翼机flap a book down hastily急忙把书合上Flappy was very happy.飞行猪很高兴。flap-ping-hinge axis挥舞铰轴线