Underwing
01
翼下羽毛, 下翼羽
the feathers on the underside of a bird's wing, which can have distinctive patterns and colors that are often visible in flight
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
underwings
02
夜蛾, 下翅
moth having dull forewings and brightly colored hind wings
