四级This week Wal-Mart is set to announce a major initiative aimed at helping cotton farmers go organic: it will buy transitional(过渡型的) cotton at higher prices , thus helping to expand the supply of a key sustainable material .
本周,沃尔玛将宣布一项旨在帮助棉农实现有机化的重大举措:将购买过渡性产品(过渡型的) 棉花价格上涨,从而有助于扩大一种关键的可持续材料的供应。
2009年6月英语四级考试真题
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