The house is almost perfect, with the exception of its sewage system.

除了排水系统外, 这房子完美无缺.

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The courtyards have the supply of cold water , sewage system, electricity.

四合院具备冷水 、 电和下水道系统等设施.

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The sewage system away the used water from toilets and other places.

下水道运走已经使用过的来自厕所或别的地方的水.

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Similarly, the sewage system is also independent of external services.

类似的, 排水系统也是独立于外部设施的.

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An outflow from a sewer or sewage system.

下水道将污物排入大海.

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Chemicals in the factory's sewage system have changed the ecology of the whole area.

这座工厂排出的化学物质改变了整个地区的生态.

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