The drugs do not work on an empty stomach, so patients have to use the dung - mixed with water - instead of food, the activists say.
宣传员们说，由于空腹吃药不能生效，这些病人们不得不把和着水的粪便当做食物。
Approximately half of the world's population relies upon biomass fuels - such as wood, dung and agricultural wastes - for everyday tasks such as cooking, drying crops and purifying water.
几乎半数的世界人口都依靠生物质燃料——木材，牛马粪便和农业废料等——来完成如煮饭，干燥农作物，净化水等日常生活活动。
The pollution of soil, water and atmosphere caused by dung pollution of animal breeding and inappropriate application of chemical fertilizer has received more and more attention.
畜牧业养殖产生的粪便污染和不恰当施用化肥而导致土壤、水质和大气污染已经引起人们越来越多的关注。
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