Covert feather
01
覆羽, 覆盖羽毛
a type of small, fluffy feather that covers the base of a bird's larger flight feathers, providing insulation and helping to streamline the bird's wing shape
语法信息
有生性状态
无生命
形态构成
复合词
可数
singular
not gender specific
复数形式
covert feathers
