Water is the source of life, industrial blood, city's lifeblood.

水是生命的源泉、工业的血液、城市的命脉。

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Water is the source of life and the material foundation for human existence.

水，是生命之源，是人类赖以生存的基本物质基础。

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Water is the source of life and the link that binds all living beings on this planet.

水是生命之源，也是维系地球上所有生命的纽带。

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The Ogallala aquifer is a major source of drinking and irrigation water for America's central plains.

VOA: special.2011.07.08

In developing countries, the main source of water pollution is not stormwater,but waste water.

VOA: standard.2010.08.04

The snowmelt is a vital water source for the state.

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In the United States, the biggest source of potable water is the Ogallala Aquifer.

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Bottled water often comes from the same source as tap water, where that is available (sometimes at a hundredth of the price), though it should at least be clean.

ECONOMIST: It must also be clean