Clean water is a precious commodity in that part of the world.

在世界的那个地方，洁净的水是宝贵的东西。

《牛津词典》

It is probably the most polluted body of water in the world.

这也许是世界上最为污染的一片水域。

《柯林斯英汉双解大词典》

People in many parts of the world are desperate for water, and more people will need more water in the next century.

世界上许多地方的人们都迫切需要水，下个世纪将有更多的人需要更多的水。

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A United Nations report says water availability in that area is the second lowest in the world, after Africa.

VOA: special.2010.04.05

And elsewhere in the world, water becomes a major, major issue.

在世界的其他地区,水资源成了一个非常非常重要的问题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The older kind of submarine used in World War Two could stay under water for only about forty-eight hours.

VOA: special.2010.06.11

In the framework of the Water World Week celebrated in Stockholm, Sweden, on 16th August, 2008 the National Water Commission (CONAGUA), together with the International Hydrological Programme of the United Nations Educational, Scientific and Cultural Organization (UNESCO), and the WET International Project (Water Education for Teachers) signed an agreement, aimed at fostering high-quality water education, particularly for formal and non-formal educators in Mexico.

UNESCO: Activities 2008

But councillors in Bath fear the water courses which supply the springs in the World Heritage city could be contaminated by the process, or that water could change direction through new fractures in the rock.

FORBES: Not a Good Argument Against Fracking

Groundwater is the source for nearly half of all drinking water in the world and around 43% of all water effectively consumed in irrigation.

UNESCO: World��s groundwater resources are suffering from poor governance, experts say | United Nations Educational, Scientific and Cultural Organization