首頁›Browse›P›placental mammalplacental mammal編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看placental mammalplacental mammal — 名詞名詞1. a mammal that develops inside the mother with a placenta1.名詞釋義胎盤哺乳類a mammal that develops inside the mother with a placenta例句Humans are placental mammals.