（鸟类的）新生毛一种裹在角鞘中的新生毛，特别是刚刚冒出皮肤外的羽毛

（鸟类的）新生毛一种裹在角鞘中的新生毛，特别是刚刚冒出皮肤外的羽毛的英文翻译

基本释义

• A growing feather still enclosed in its horny sheath, especially one just emerging through the skin.