Paradoxically,construction of sewers without complete treatment facilities in places such as the Ganges River Basin might add to biological demands on the river,because most human waste,although a terrible threat to health,does not now reach the rive

Paradoxically,construction of sewers without complete treatment facilities in places such as the Ganges River Basin might add to biological demands on the river,because most human waste,although a terrible threat to health,does not now reach the rive
Paradoxically,construction of sewers without complete treatment facilities in places such as the Ganges River Basin might add to biological demands on the river,because most human waste,although a terrible threat to health,does not now reach the river.

Paradoxically,construction of sewers without complete treatment facilities in places such as the Ganges River Basin might add to biological demands on the river,because most human waste,although a terrible threat to health,does not now reach the rive
自相矛盾的是：在一些地方,例如恒河流域地区,管道设施建设中全套污水处理设施的缺失可能会对该流域的生态环境提出更高的要求.因为绝大多数人类产生的垃圾尽管对健康有着极大的威胁,但到目前为止污染还没有达污染到河流.

（然而）自相矛盾的是，在恒河流域之类的地区，由于修建下水道时没有完备的处理设施，那些对人体有害但这里却十分有用的人体排泄物将不能进入河流，这将可能会增加河流的生物需求（强烈怀疑这里应该是“生物需氧量“）。
为通顺稍做了改动，意思不变。...

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（然而）自相矛盾的是，在恒河流域之类的地区，由于修建下水道时没有完备的处理设施，那些对人体有害但这里却十分有用的人体排泄物将不能进入河流，这将可能会增加河流的生物需求（强烈怀疑这里应该是“生物需氧量“）。
为通顺稍做了改动，意思不变。

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