Prototheria
基本解释
- 原哺乳亚纲
英汉例句
- the most primitive mammals comprising the only extant members of the subclass Prototheria.
最原始的哺乳动物,组成原兽亚纲唯一的现存种类。 - the most primitive mammals comprising the only extant members of the subclass Prototheria
最原始的哺乳动物,组成原兽亚纲唯一的现存种类 - primary mammal (Prototheria)
原兽亚纲