42.原文：提高现有耕地单位面积产量有潜力。译文：There are potential for increasing the per unit area yield on the existing cultivated land.-湖北继续教育网网校

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42.原文：提高现有耕地单位面积产量有潜力。

译文：There are potential for increasing the per unit area yield on the existing cultivated land.