单词：derived high polymer
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The East African Community, a grouping of 5 countries in and around the Horn, is continuing to work towards its goal of regional economic integration. Members of the EAC are dropping barriers to trade, with the goal of eventually adopting a common cu
VOA标准英语2010年(十二)月
This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Are your car bumpers riddled with scars from encounters with tight parking spaces? Did the furniture movers scratch your floor? Wouldn't it be great if t
Scientific American(四)月
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because
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Most of us blink without thinking. But people whove sustained strokes or combat injuries can lose their ability to blink. Which is important for lubricating and cleaning the eye. Surgery is an optiona small piece of muscle transplanted from the leg c
Scientific American(一)月
Passage Transcript biochemistry is a very specific area of chemical science which, studies the interactions of biological systems with chemical components, and which also determines, which chemical components and, how interacts with the human body an
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Lowering the Ceiling on Roof Energy Losses Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because traditional black asphalt roofs heat up in summer and s
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By Jessica Berman Washington 29 November 2006 The well-known scientific journal Science should require more information from authors, especially if their papers are likely to generate a lot of public attention. That's the conclusion of an independen
2006年VOA标准英语（十一月)
By Melinda Smith Washington, DC 24 January 2007 watch Diet report Trying to lose weight can be challenging and confusing, because there are so many different diet plans competing for attention. Low fat, or low carbohydrates, or high fiber? It's hard
2007年VOA标准英语（一月）
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor
Scientific American(九)月
Patients undergoing coronary bypass surgery need implants of new, healthy blood vessels. So do those who receive repeated hemodialysis due to kidney failure. The best option is to use the patient's own veins or arteries, but thousands of patients don
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This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene
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Research Breakthrough for Biodegradable Tires? 研究人员研发完全可降解轮胎 Researchers say they have created a new synthetic rubber that could be used to make biodegradable tires. A team at Texas AM Universitys campus in the Gulf nation o
2016年VOA慢速英语(九)月
'Smart' Bandages Could Heal Wounds More Quickly 智能绷带有助更快治愈伤口 Simple bandages are usually seen as the first line of attack in healing small to moderate wounds and burns. But scientists say new synthetic materials with embedded
VOA标准英语2016年(二月)
My cup of tea refers to the sort of thing that pleases or appeals to me. The metaphor is nearly always used negatively. The expression came into use between the First and Second World Wars. In the Victorian age the consumption of tea by all classes h
英文语法词汇
Heading Stateside for your own voyage of discovery? Take some inspiration from a couple of these titles. 即将去美利坚开启你的探索之旅吗？先来读读下面这几本书获得一点启发吧。 1. JACK KEROUAC, ON THE ROAD 1. 《在路上
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By Gilbert da Costa Abuja 26 October 2007 A rare outbreak of vaccine-derived polio in Nigeria has prompted fears that current efforts to eradicate the disease in northern part of the country could suffer a major setback. The World Health Organization
2007年VOA常速英语（十月）
Twelve months after 9/11, a Trukish couple living in Germany tried to name their newborn son Osama bin Laden. Officials in Cologne, where the couple lived, turned down their request, saying that this name would not be accepted in their home country.
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