During its yearly World Water Day observance last month it called on the international community to work together to solve the water crisis.

VOA: special.2010.04.05

And the idea was that gravity did work on the water and falling, and that work led to the generation of heat.

焦耳的想法是,重力对水，做了功。

麻省理工公开课 - 热力学与动力学课程节选

People across the state will work together on one hundred twenty-five local projects to clean trash, remove invasive plants and improve water areas.

VOA: special.2010.04.21

Experts say a reduction of only four or five percent in body water leads to a drop of twenty to thirty percent in work ability.

VOA: special.2010.07.27

An international service project called Pure Water for All helps support the work.

VOA: special.2009.06.22

He says the agencies are supplying water, distributing farming supplies, setting up cooperatives and implementing food-for-work projects.

VOA: standard.2009.10.24

"Before,we were oppressed by periods of drought," "Even if you wanted to work the land if you wanted to do things there was no water.

VOA: standard.2009.12.10

Most of the money was spent of dredging equipment. But Tuman and others who live on the water say these machines rarely work and have not helped with the pollution problem.

VOA: standard.2009.12.16