The factory has dumpaged its castoff into that river all along. As result, the river has been polluted.

该工厂一直将其废弃物倾倒在那条河里. 结果, 那条河被污染了.

《简明英汉词典》

The castoff produced in pig industry pollutes the air, the water, the soil and so on.

规模养猪生产过程中产生的废弃物可对大气 、 水体和土壤等造成污染, 降低环境质量.

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Fly ash was a sort of industrial solid castoff which could be utilized again.

粉煤灰是一种可再资源化的工业固体废弃物.

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