单词：tosyl cellulose
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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
Scientific American(五)月
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
VOA标准英语2011年(四月)
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
2014年VOA慢速英语(九)月
By Joe Bavier Abidjan 27 March 2006 Compound of the house where former Liberian warlord Charles Taylor lives near the sea side town of Calaber Supporters close to deposed Liberian leader Charles Taylo
2006年VOA标准英语（三月）
A new report by the U.N. refugee agency finds the number of asylum seekers in industrialized countries increased in 2008 for the second consecutive year. It says asylum requests have been rising in part because of the higher number of applications f
VOA标准英语2009年(三月)
The United Nations refugee agency says it is concerned about the fate of hundreds of irregular migrants, including asylum seekers and refugees, following the closure of a makeshift camp in the Greek city of Patras. The UNHCR says it fears many of th
VOA标准英语2009年(七月)
By Jim Malone Washington 18 April 2008 Democratic presidential contender Hillary Clinton faces a crucial test in Tuesday's presidential primary in Pennsylvania. Clinton is counting on a convincing win over rival Barack Obama in Pennsylvania to keep a
VOA常速英语2008年（四月）
欧洲顶尖流行电子乐组合Sylver翻唱自ABBA经典歌曲的《Lay All Your Love On Me》，经过重新编曲带给你不一样的听觉体验。 Lay all your love on me-Sylver i wasn't jealous before we met now every woman i see is a potential threat and i'm possessive, it isn't
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A small corner shop in suburban Sydney is an unlikely place to hear the horrors that force people from their homes and into the devious and dangerous world of people smugglers. Hassan Abotbeek fled Iraq and arrived in Australia by boat more than seve
英语杂谈
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
留美老师带你每日说英文