5 Klein is right about the very long period over which we have evolved.
5 Klein is right about the very long period over which we have evolved.
0克莱恩关于我们的演化经过了一段相当长的阶段的认识是对的。
5 Klein is right about the very long period over which we have evolved.
0克莱恩关于我们的演化经过了一段相当长的阶段的认识是对的。