metatherian /metә'θeriәn/ 📖 中文释义 a. 后哺乳下纲的,后兽亚纲的 🧩 词形变化 复数 metatherians 📘 English Definition(英文释义) n primitive pouched mammals found mainly in Australia and the Americas ← Metatheria M 字母词表 metatherians →