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
The lack of clean drinking water around the world forces millions of people to drink unsafe water.
VOA: special.2010.04.05
The very top of the wire drawing represents the only part of the ocean landscape that can be seen on the surface of the water: It is Bouvet Island, one of the most isolated islands in the world.
VOA: special.2009.05.06
The World Meteorological Organization says 90 percent of all natural disasters are related to weather, water and climate events.
VOA: standard.2009.03.23
Malaria,diarrhea,and typhoid- water-related diseases that are not fatal in First World countries- cause half of the child deaths in Yemen.
VOA: standard.2010.04.01
"Tea is the world's second most popular drink, second to water, and there are literally thousands of tea formulations around the world, so the challenge for us, isn't finding new tea recipes, it's focusing and making sure we're developing things that are going to work."
VOA: standard.2010.02.17
It was the center of their universe. And it was called the 'hydraulic city' because it had really remarkably massive arrays of barays, which are these giant water tanks and a series of canals and interconnected waterways that was really unparalleled in the ancient world in that part of the world."
VOA: standard.2010.04.05
应用推荐