基本解釋非婚羽英英字典柯林斯英英字典 seasonal plumage that occurs in certain birds after the breeding plumage and before the winter plumage: characterized by dull coloration eclipse plumage劍橋字典eclipse plumage柯林斯字典專業(yè)釋義生物學(xué)鼕羽蝕羽