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现在，我们确实有明确的证据表明，人们正在以一种以前不可能的方式发展友谊和专业网络，而且这个过程发展得更快了。

Now, what we do have clear evidence for is that people are developing friendships and professional networks in a way that wasn't possible before, the process is faster.

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生产原材料和制造陶瓷和纺织品的专业化证据表明了社区内部和社区之间的劳动差异。

Evidence of specialization in producing raw materials and in manufacturing ceramics and textiles indicates differentiation of labor within and between communities.

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