在20世纪80年代,美国成为了一个物质至上的社会。
During the 1980s the U.S. became a very materialistic society.
在美国社会,物质主义和个人主义是最大的障碍。
Materialism and individualism in American society are the biggest obstacles.
的确,从蜗牛身上提取的紫色物质曾经非常昂贵,在当时的社会,只有富人才能买得起。
Indeed, the purple colour extracted from a snail was once so costly that in society at the time only the rich could afford it.
Can we see-- use some of the same methods that we've looked at for the physical world to look at the social world?
我们能够应用,看待物质世界的一些方式,来看待社会世界吗
Once they have it, and they plant permanent crops, that changes the whole basis of society and the values, and the attitudes that go with it.
一旦他们拥有了土地,他们会栽种长期作物,这就改变了整个社会的物质基础和价值观,以及处理这种问题时的态度
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