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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。