单词：
单词： 相关文章
The northeast just had its first big snow of the season. Meanwhile, on Titan, it was foggy. That weather report brought to you by researchers publishing in the journal Astrophysical Journal Letters. The scientists found that Titan, Saturns largest mo
Scientific American(十二)月
Agriculture Report - Getting to the Root of How to Water Trees This is the VOA Special English Agriculture Report. Some trees can survive a long time without water. Think of trees that grow in the desert. But other trees may need more moisture than t
2011年VOA慢速英语(八)月
Fog Found on Saturn's Moon Titan A study in Astrophysical Journal Letters reveals that Titan may be home to the familiar atmospheric condition known as fog--but made out of methane. Karen Hopkin reports The northeast just had its first big snow of th
60秒科学
Will There be Enough Water for Everyone? As the global population grows, so does the need for water. The Worldwatch Institute says increased demands for food, energy and industry, along with climate change, could lead to water scarcity in some places
VOA标准英语2013年(三月)
Low-tech Solutions Found for Africa's Everyday Problems 低技术含量的解决方案解决非洲日常问题 Governments of developing countries in Africa often lack the resources and infrastructure to solve the everyday problems of their inhabitan
VOA标准英语2015年(七月)
US satellite observations have produced the first strong evidence for water flowing on Mars. 美国卫星观测找到了火星表面存在液态水的首批强有力证据。 The water is a brine saturated in salts such as perchlorates. As it seeps d
英语新闻