heavy-bodied Old World diving duck having a grey-and-black body and reddish head
双语例句
用作名词 (n.)
Any of various diving ducks of the genus Aythya,especially A. ferina of Europe and Asia,which has gray and black plumage and a reddish head. 潜鸭，一种潜鸭属潜水鸭，尤指产于欧洲和亚洲的红头潜鸭，它有灰黑色的羽毛和浅红色的头。
