但他们不知道，在这个世界上，没有一样人为的产品，是要的人多于不要的人的，除了空气和水这一类大自然的产物之外。
But they don't know, in this world, there is no human products, is to than the people, in addition to the don't air and water this kind of creatures of nature outside.
但他们不知道，在这个世界上，没有一样人为的产品，是要的人多于不要的人的，除了空气和水这一类大自然的产物之外。
But they don't know, in this world, there is no human products, is to than the people, in addition to the don't air and water this kind of creatures of nature outside.
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