在原始社会，先民的生存与生殖问题是他们最基本的本能。
In the ancient society, our ancestors had the basic instinct and the ability to survive and reproduce their following generation.
在原始社会，先民的生存与生殖问题是他们最基本的本能。
In the ancient society, our ancestors had the basic instinct and the ability to survive and reproduce their following generation.
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