secondaries副: assistant翼: the wing of a bird羽: feather; plume a note of the ...覆翼羽: wing bar; wing covert小翼羽: ala spuria; alula; bastard wing下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:副翼羽,即可在微信中查询翻译