noun 下载 🔗分享 河马, 巨河马 A large, semi-aquatic, herbivorous (plant-eating) African mammal (Hippopotamus amphibius) Examples : "The zookeepers carefully fed the hippopotami their daily portion of hay and vegetables. " 动物园管理员们小心地给河马们喂食了它们每天的干草和蔬菜。 animal biology nature organism environment 与AI对话词汇游戏阅读练习