六级Facing water shortages and escalating fertilizer costs, farmers in developing countries are using raw sewage ( ' , 下 水道污水) to irrigate and fertilize nearly 49 million acres of cropland, according to a new report—and it may not be a bad thing.
面对水资源短缺和化肥成本不断上升，发展中国家的农民正在使用未经处理的污水（“，下 水道污水) 根据一份新的报告，灌溉和施肥近4900万英亩的农田，这可能不是一件坏事。
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