noun 下载 🔗分享 双足动物,两足动物 An animal, being or construction that goes about on two feet (or two legs). Examples : "Humans are bipeds, so we can walk upright on two legs. " 人类是双足动物,所以我们可以用两条腿直立行走。 animal biology anatomy organism being human 与AI对话词汇游戏阅读练习