在哺乳动物和有关它们繁殖的生理学与胚胎学之间存在太多的差异，因而不能保证不会生出畸形的胎儿或婴儿。

There are too many differences between mammals and their reproductive physiology and embryology to be sure that no deformed foetus or infant would be born.

youdao

在哺乳动物和有关它们繁殖的生理学与胚胎学之间存在太多的差异，因而不能保证不会生出畸形的胎儿或婴儿。

There are too many differences between mammals and their reproductive physiology and embryology to be sure that no deformed foetus or infant would be born.

youdao