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They can charge more for water or fertilizer, discouraging waste.
也可以多收水费或化肥费以鼓励减少浪费。
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After once use, the product is re-used as fertilizer or feed.
第一次使用后回收处理可作饲料或肥料。
youdao
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After once use, the product is re-used as fertilizer or feed.
第一次使用后回收处理可作饲料或肥料。
youdao