In this way, it can save 15% heating fees than the traditional ways, and save more than 30% than individual heating.

这样比传统的集中供暖费用降低15%，比单独采暖降低30%以上。

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However, when you walk into the countryside, you'll see a different picture: streets and houses there are shabby and untidy; farmers' children still fret at one-hundred-yuan heating fees at school.

但是你走不久，进入农村就是另外一种现象，农村的街道、房屋还很落后，农民的孩子上学还为一百块钱的取暖费而发愁。

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The operations at the biogas and heating plants bring in cash, because farms and factories pay fees to dispose of their waste and the plants sell the heat, electricity and car fuel they generate.

经营沼气供热厂很赚钱，因为农场和工厂要处理他们的废料就得向这些工厂交钱，而这些工厂又出售生产出的热、电以及汽车燃料。

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