在汽车中使用玉米乙醇这种生物燃料，将增加对玉米的需求，进而导致人们开垦更多的农田来供给农作物。

Using this biofuel, corn ethanol, in cars will increase the demand for corn which, in turn, will lead to more farmlands created to supply the crops.

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农民用水来种植蔬菜、水稻、玉米等农作物，工厂用水来制造产品。

Farmers use water to grow vegetables and crops like rice and corn, factories use water to make products.

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此外，由于农民正减少大豆和小麦的种植，因此将来即使不降低玉米产量，此类农作物的价格也会不断上扬。

Moreover, even to produce as much corn as they are now, farmers are growing less soya and wheat, and so pushing up the prices of those crops too.

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