Question

贯穿史前时期，保证产品最高程度的耐用性和持久性的是这一个事实：生产者和消费者不是同一个人就是同样的个体或是近亲。

Accepted Answer

Throughout prehistory it was the fact the producers and consumers were either one and the same individuals or close kin that guaranteed the highest degree of reliability and durability in manufactured items.

正面	贯穿史前时期，保证产品最高程度的耐用性和持久性的是这一个事实：生产者和消费者不是同一个人就是同样的个体或是近亲。
背面	Throughout prehistory it was the fact the producers and consumers were either one and the same individuals or close kin that guaranteed the highest degree of reliability and durability in manufactured items.

贯穿史前时期，保证产品最高程度的耐用性和持久性的是这一个事实：生产者和消费者不是同一个人就是同样的个体或是近亲 Prehistory Fact Producers Consumers Individuals Close Kin