noun 下载 🔗分享 多瘤齿兽 Any of a small group of rodent-like mammals, of the order †Multituberculata, from the Cretaceous and Paleocene periods. Examples : "Paleontologists study fossils of the multituberculate, an extinct mammal that resembled a rodent and lived millions of years ago. " 古生物学家研究多瘤齿兽的化石，这是一种已经灭绝的哺乳动物，外形像啮齿动物，生活在数百万年前。 animal biology organism history geology science 与AI对话词汇游戏阅读练习
adjective 下载 🔗分享 多瘤齿的 (of teeth) Having molars with multiple rows of cusps. Examples : "The multituberculate teeth of the ancient rodent fossils showed intricate patterns of multiple cusps in each molar. " 古代啮齿动物化石的多瘤齿表明，每颗臼齿上都有着复杂的多排齿尖图案。 anatomy biology animal 与AI对话词汇游戏阅读练习
