According to William Cline of the Peterson Institute for International Economics in Washington, DC, at least 4% of the world's grain is used to make ethanol for fuel.

根据皮特森国际经济研究所(位于华盛顿哥伦比亚特区)的威廉姆·克莱恩的研究，世界粮食至少4%被用于制造酒精燃料。

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Listing 4: Updated dc: subject to use controlled vocabulary.

清单4：更新dc： subject以使用受控词汇表。

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Listing 5: Updated dc: subject to use controlled vocabulary in Listing 4, repeating label property.

清单5：通过重复使用lable特性，更新dc： subject以使用清单4中的受控词汇表。

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Once completed it is expected to generate 6.4 MWh DC (equivalent to 5MW AC) and be capable of generating enough electricity to power about 700 average-sized homes.

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According to William Cline of the Peterson Institute for International Economics in Washington, DC, at least 4% of the world's grain is used to make ethanol for fuel.

ECONOMIST: Climate change and crops

Washington DC was the only bright spot, gaining 0.3% from November and 4.1% from December 2009. (Read Price Stability In 75% Of U.S. Metro Areas By Year-End, Double-Dip Looms).

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