noun 下载 🔗分享 哺乳动物 An animal of the class Mammalia, characterized by being warm-blooded, having hair and feeding milk to its young. Examples : "My pet cat is a mammal, and so are my dogs. " 我的宠物猫是哺乳动物,我的狗也是。 animal biology organism 与AI对话词汇游戏阅读练习
noun 下载 🔗分享 哺乳动物, 哺乳类 A vertebrate with three bones in the inner ear and one in the jaw. Examples : "Example Sentence: "Cats, dogs, and humans are all mammals because they have hair or fur and feed their babies milk." " 猫、狗和人类都是哺乳动物,因为它们有毛发,并且用乳汁喂养幼崽。 animal biology organism anatomy physiology 与AI对话词汇游戏阅读练习