Many species have a pouch (marsupium), a fold of skin covering the nipples on the mother's lower belly, where the young continue their development.
许多品种都有一个(marsupium),是在母体下盖住乳头的,体在内继续发。
Many species have a pouch (marsupium), a fold of skin covering the nipples on the mother's lower belly, where the young continue their development.
许多品种都有一个(marsupium),是在母体下盖住乳头的,体在内继续发。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。