noun 下载 🔗分享 红头潜鸭,凤头潜鸭 Any of various diving ducks of the subfamily Aythyinae, especially the common pochard, Aythya ferina. Examples : "During the nature walk, the children spotted several pochards on the lake. " 在自然漫步期间,孩子们在湖面上发现了好几只红头潜鸭或凤头潜鸭。 animal bird nature biology organism environment 与AI对话词汇游戏阅读练习