单词：etherification of cellulose
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The ways of history are so intricate and the motivations of human actions so complex that it is always hazardous to attempt to represent events covering a number of years, a multiplicity of persons, a
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Zhou Liujun, director of the Commerce Ministry's Overseas Investment Department, says new regulations are being drafted which will have Chinese companies looking to invest abroad undergo stricter authentification checks. Our first move is to increase
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By David Gollust State Department 30 March 2007 The State Department says it is seeking clarification of reports Sudan has softened its opposition to new international peacekeepers for Darfur. The reported change of position by Sudanese President Oma
2007年VOA标准英语（三月）
Don: Time to go again to the A Moment of Science mailbag. Yal: A listener writes: Dear A Moment of Science, Scientists know that one day we'll run out of oil and other natural sources of energy. Beyond solar power and wind power and ethanol, what are
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. It sounds like something out of a bad science fiction novel. During World War II, a fungus called Tricoderma reesei ate its way through US military unifo
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Scientists in Brazil are turning fruit fibers into car parts. At a recent meeting of the American Chemical Society, the researchers described their work in making the next generation of automotive parts made from natural fibers from bananas, pineappl
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Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou
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MARY LOUISE KELLY, HOST: Who is Aquaman? Well, the answer is more complicated than you might think. He is the star of a blockbuster film opening this week. But for most of his life, Aquaman has been strictly a D-list superhero, a benchwarmer, an also
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Grammar Girl here. Today's topic is verbification. Last week police used a Taser on University of Florida student Andrew Meyer as they struggled to remove him from an auditorium where Senator John Kerry was speaking. The Web has been filled with deba
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By Margaret Besheer New York 19 April 2008 Pope Benedict told American Catholic clergy and nuns on Saturday that the Church in the United States must work to overcome its divisions, saying this is a time of healing and purification, after the sexual
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It turns out that concentrating on their partners' physical attractiveness may make people less happy in relationships, new research suggests。 最新研究表明，过度关注伴侣的外表会让人们从爱情中收获的快感降低。 Partner-
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By Joe Bavier in Abidjan Franz Wild in Meagui 18 May 2006 Officials in a half dozen towns in war-divided Ivory Coast have begun registering residents who, until now, have had no documents or legal sta
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By Kurt Achin Seoul 02 July 2007 U.S. President George Bush and South Korean President Roh Moo-hyun signed a wide-ranging trade liberalization agreement Saturday. Legislators in both countries will need to vote on whether to ratify the treaty. As VOA
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Villagers gather in front of a dam near the village of Labgar in northern Senegal on 12 Nov 2009. There is little to show for it apart from small acacia shrubs, but Senegal's leader believes in a Great Green Wall that will stem desertification across
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长二捆 LM-2E 长江三角洲 Yangtze River delta 长期共存、互相监督、肝胆相照、荣辱与共 long-term coexistence, mutual supervision, sincere treatment with each other and the sharin
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John Rico is a self-quantifier and he says being one has improved his life. 约翰?里科是位自我量化主义者，用他的话就是做一个让自己生活更美好的人。 Every one of us wants to live a better life, but what is a self-quanti
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台湾籍旅美老师今天交给我们的句子是： It's not rocket science: Focus on lean protein, healthy fats and non-processed, unrefined carbohydrates such as vegetables, beans, whole grains and fruit. 这不难懂：多摄取低脂肉类、健
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