US imports of ethanol from Brazil have risen to their highest level since 2008 as a result of environmental regulations that favour Brazilian fuels produced from sugar over US product made from corn.
美国从巴西进口的乙醇数量升至2008年以来最高水平，原因是环保法规向产自蔗糖的巴西燃料（而非产自玉米的美国燃料）倾斜。
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