No one could raise crops on this barren land.

没人能够在这么贫瘠的土地上种庄稼。

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Some cooperatives, for example, raise money for research into important crops.

例如，一些合作社筹集资金研究重要农作物。

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Then, some people learned to grow crops and raise animals for food.

后来，一些人学会种植作物和养殖动物为食。

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This will enable them to raise bigger crops.

这将使他们能取得更好的收成。

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Then, some people learned to grow crops and raise animals for food.

然后，有些人学会种植庄稼和饲养动物的食品。他们的第一个农民。

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Then, some people learned to grow crops and raise animals for food.

然后，有些人学会种植庄稼和饲养动物的食品。他们的第一个农民。

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