单词：tetrarogid
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This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang
Scientific American(一)月
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单词解析速记
Today, guest-writer Neal Whitman will help us understand why the word troops can refer to the number of individuals or groups. What Does Troops Mean? Memorial Day is next week, when we in the U.S. honor members of the military who have died in the li
英语语法 Grammar Girl
By Mario Ritter Broadcast: October 7, 2003 This is Doug Johnson with the VOA Special English Agriculture Report. Today we finish a two-part series. A listener in Brazil asked about 1)agroecology. This
VOA2003（下）-农业与经济
T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗
医务英语
By Mario Ritter Broadcast: September 30, 2003 This is Steve Ember with the VOA Special English Agriculture Report. This week, we take a suggestion from a listener in Brazil. Agricultural specialist Lu
VOA2003（下）-农业与经济
[全屏观看] 点击右键- 另存为 可保存这个Flash影片 介绍说明: W.A.S.D/移动。
英语单机游戏
By Phil Mercer Sydney 19 April 2006 Residents watch the smoke rise in Honiara, the Solomon Islands capital, Wednesday, April 19, 2006 after a night of rioting in the aftermath of the election of Snyde
2006年VOA标准英语（四月）
By Jeffrey Young Washington 12 June 2007 To most Americans, the governments in their towns and regional areas, called counties, are the governments they interact with the most. And alongside these local governments are groups of citizens who work on
2007年VOA标准英语（六月）
By Stephanie Ho Washington 15 November 2006 The non-profit group , One Laptop per Child has unveiled a low-cost, high-durability laptop computer that it says it wants to put into the hands of children across the globe. Children's laptop from One Lap
2006年VOA标准英语（十一月)
By Ernest Leong Washington, D.C. 10 November 2006 watch Gates profile Robert Gates, President Bush's nominee to become the new U.S. Defense Secretary, is a former CIA Director with decades of experience in the national security field. He has also se
2006年VOA标准英语（十一月)
By Cathy Majtenyi Nairobi 01 February 2007 Burundi has agreed to offer troops for the African Union peacekeeping initiative in Somalia. Meanwhile, Uganda's parliament is brushing aside attempts by the ruling party to push through a motion to send Uga
2007年VOA标准英语（二月）
Earlier this year, President Bush said the United States would spend $350 million over five years to fight seven of the world's most common parasitic and bacterial diseases affecting hundreds of millions of people in tropical regions of the world. A
VOA标准英语2008年（七月）
今天我们要学的词是robocall。 Robocall指的是由计算机系统自动拨号，播放事先录制的电话留言的宣传电话。Robocall是产品促销和政治竞选的常用手段。A GOP group launched its robocall campaign against Sen
英语每日一词
Probiotic yoghurt drinks and supplements dont live up to their promises, according to an EU watchdog. They claim to boost your immune system and help digestion. It concluded there is no scientific proof that products such as Yakult have any health be
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OMG! Congratulations to both of you!! How did he pop the question??OMG! 祝贺你们俩啊！！他怎么求的婚啊？？
OMG美语
By Zulima Palacio, Cindy Saine Washington, D.C. 05 July 2006 Watch Protest Report Protestor A small group of about 15 people gathered in front of the Washington bureau of the New York Times Monday to protest the paper's publishing of what some call
2006年VOA标准英语（七月）
10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur
万物简史
BEIJING, Nov. 22 (Xinhuanet) -- Global AIDS deaths and new HIV infections have each dropped 21 percent since the peak of the AIDS pandemic in 1997, according to a UN report released Monday. One major factor responsible for the result is that life-sav
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