单词：sustoxin
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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As long as there have been mice, people have sought a better mousetrap. And since we figured out that bacteria can make us sick, weve searched for better
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By Brian Wagner Miami 19 July 2007 Brazilian prosecutors are seeking to suspend flights at the country's busiest airport while investigators study a plane crash that killed at least 189 people. In Miami, VOA's Brian Wagner reports aviation officials
2007年VOA标准英语（七月）
The Pentagon has welcomed Pakistan's raid on alleged terrorist bases in its northwestern region, but says counter-terrorism efforts need to be made on a sustained basis. Pentagon Press Secretary Geoff Morrell (File) Press Secretary Geoff Morrell say
VOA标准英语2008年(十二月)
By Derek Kilner Nairobi 26 February 2008 Negotiations between Kenya's government and the opposition have been suspended. As Derek Kilner reports from Nairobi, the two sides have been unable to agree on the terms of a power-sharing arrangement to brea
VOA常速英语2008年（二月）
By Joe Bavier Abidjan 08 January 2006 Chadian workers guide a pipe down a well in the Doba oil fields in southern Chad where a $3.7 billion project was officially inaugurated (File photo - Oct. 10, 20
2006年VOA标准英语（一月）
Human Rights Watch says at least 10 people are being detained without charges in Ethiopia, following an operation in early 2007 that covertly transferred terrorism suspects between countries in the Horn of Africa region. As Derek Kilner reports from
VOA标准英语2008年（十月）