To make it worse, pollutions from industrial production transform many clean rivers into undrinkable water.

更糟的是，工业生产导致的污染使得许多清洁河流都变得不能饮用。

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More than 97 percent of Earth's water is in the oceans, but that vast reservoir is undrinkable unless the salt is removed.

地球上超过97%的水是海水，在盐分去除之前是不能饮用的。

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In the rugged south of Shanxi province, the water in the mountain streams was now black with coal dust and undrinkable.

在崎岖的山西南部，山里的水已经不能喝了，黑乎乎的跟煤混在一起。

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Sapphire Energy's answer is a form of "green crude oil" made from algae, which can be grown on non-agricultural land in shallow paddies full of undrinkable saline water.

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These days it has managed to persuade Indians to stop boiling their otherwise undrinkable tap water and instead use a now-ubiquitous water purifier known as "Aquaguard, " which has a 75% market share.

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Officials of the urban water system told Maiffret that with a few mouse clicks, he could have rendered the water undrinkable for millions of homes.

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