主要的污染物是动物粪便、抗生素和激素、制革厂的化学品、用于饲料作物的化肥和杀虫剂。
The major polluting agents are animal wastes, antibiotics and hormones, chemicals from tanneries, fertilizers and the pesticides used to spray feed crops.
主要的污染物是动物粪便、抗生素和激素、制革厂的化学品、用于饲料作物的化肥和杀虫剂。
The major polluting agents are animal wastes, antibiotics and hormones, chemicals from tanneries, fertilizers and the pesticides used to spray feed crops.
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