People have to evolve to have biology that tolerates the subsistence that they access to, and that varies in different parts of the world, so again, humans evolve.

人类不得不演化,以适应周遭环境,世界各地环境各不相同,因此,人类再次演化

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but at the same time it's really different if you're not used to it.

但是如果你不适应这种环境的话，还是会觉得很不同。

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