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。
Then one day came the epiphany. In a supermarket sale, Cline ended up buying seven pairs of identical canvas flats marked down from $15 to $7.
然而有一天真相还是暴露出来了。在一次超市的大甩卖中,克莱一口气买了七双相同的帆布平底鞋,打折后的价格从15美元到7美元不等。
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