单词:tfibromoethanol
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Today's podcast is going to test your knowledge of ethanol. What is it? How is it made? And what are the advantages and disadvantages of using it? I asked myself these questions recently, when I drove past a gas station that had a sign saying 'No eth
Alternative Fuel Ethanol Hits a Wall 替代燃料乙醇遭遇难题/撞墙 When U.S. drivers fill their tanks with ethanol, they are essentially buying fermented corn grown by American farmers. A 2007 law requires gasoline makers to add increasing am
今天我们要讲的习惯用语的意思都是谎话。但是谎话多种多样,人们撒谎的程度也轻重不一,在英语中得用不同的词句来表达。我们今天要讲的第一个是: fib。Fib当然不是实话,然而却是无伤大
It first showed up in October 2011 on Kickstarter, the world's largest funding platform for creative projects. Then Romo quickly won people's hearts around the world. It's the world's first smart phone robot. An iPhone or an iTouch is his face and br
By Greg Flakus Houston 16 October 2007 In recent months food costs in the United States have gone up by well over six percent and some economists see government-mandated use of bio-fuels as a key reason. But, as VOA's Greg Flakus reports from Houston
By Jeffrey Young Washington 16 October 2007 U.S. farmers have gone through many cycles of boom and bust. But as VOA's Jeffrey Young reports, prospects for American agriculture are looking up, thanks to rising crop prices and land values, especially i