单词：Zanthoxylum simulans Hance
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Online Classes May Force Changes at Universities This is pretty amazing, said the University of Virginia's David Evans, teaching an online introduction to Computer Science. Online classes are now taught by many top universities and offer everything f
VOA标准英语2013年(六月)
1. similarity /ˌsɪməˈlrɪti:/ -- likeness; resemblance The two pills are alike in color and shape, but there the similarity ends. 这两颗药丸的颜色和形状都很相像，但相似处也仅限于此。 2. simile /ˈsɪməli:/ -- comparison
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By Ayaz Gul Islamabad 04 July 2006 Security officer keeps Afghans away from bloody site after bomb exploded in Kabul, July 04, 2006 Afghan authorities say two bomb explosions in Kabul have injured five civilians, while suspected Taleban militants ha
2006年VOA标准英语（七月）
If you're going to come up with a practical solution to any problem, Paul Polak observes, you have to first talk to the people who have the problem and listen to what they have to say. So that's what I did. Paul Polak is dedicated to developing pra
VOA标准英语2008年（六月）
By Jeff Swicord Kandahar, Afghanistan 23 June 2006 Watch NATO Report British, Dutch, and Canadian troops are arriving by the thousands in Kandahar in southern Afghanistan as NATO prepares to take responsibility for security in the southern region in
2006年VOA标准英语（六月）
By Benjamin Sand Paktika, Afghanistan 22 May 2006 As violence flares across Afghanistan, U.S. military officials say the new Afghan National Army will have to shoulder greater responsibility for defea
2006年VOA标准英语（五月）
By Cathryn Curtis Washington, DC 16 March 2006 watch Bird Flu Mutations report Swabing inside of mouth of bird As the threat of bird flu spreads around the world, the big question on the minds of scie
2006年VOA标准英语（三月）
Ocean Floor Reveals Past Climate Changes Time capsule Lamont research professor Maureen Raymo, the director of the Core Repository, slides open a long, narrow drawer from the cabinet. Like thousands of others here, the drawer contains a long, thin cy
VOA标准英语2012年(一月)
Old Racehorses Give Prisoners Second Chance Its a second chance for all involved. The non-profit Thoroughbred Retirement Foundation saves former race horses from possible neglect, abuse and slaughter. At the same time, the horses prepare prison inmat
VOA标准英语2012年(八月)
Young Singer Wins Chance of a Lifetime The National Anthem can be a challenge, but more than two dozen singers, aged eight to 17, gave it their best shot for a chance to perform it with the Baltimore Symphony Orchestra. They come on stage and they ar
VOA标准英语2012年(六月)
The Science of Climate Change Climate negotiators are meeting in Durban, South Africa beginning from November 28-December 9 to discuss the planet's changing climate. The first decade of this century was the hottest on record. Polar ice is melting. Gl
VOA标准英语2011年(十一月)
Experts: Chavez's Diagnosis Weakens Re-Election Chances Mr. Chavez disclosed his condition last week while visiting the site of a proposed tractor factory. He said he had been examined by doctors in Cuba who found a lesion in his pelvis where a cance
VOA标准英语2012年(二月)
The Egyptian village of Kafr Torky lies along the banks of the Nile, seemingly a world away from the passions that played out further north, in Cairo's Tahrir Square. Yet even in such a bucolic setting, the demonstrations and ultimate victory of the
VOA标准英语2011年(二月)
Baby Bins Give Abandoned Children A Second Chance In a small street in Berea, one of the poorest neighborhoods in Johannesburg, a trap door in a wall could be mistaken for a mailbox. But it's actually a place where mothers can safely leave their babi
VOA标准英语2013年(四月)
New Procedures Improve Chances for Trauma Victims At one of the largest trauma centers in the United States, a multi-disciplinary team of doctors and nurses works quickly to save the life of a 60-year-old man suffering from multiple stab wounds. Dr.
VOA标准英语2013年(四月)
By Katy Migiro Nairobi 07 May 2007 Rescue teams in Cameroon resumed work at the site of the crashed Kenya Airways flight at daybreak. The plane crashed early Saturday after take-off from Doula airport in Cameroon and was found late Sunday in a mangro
2007年VOA标准英语（五月）
By Carol Pearson Washington, DC 05 January 2007 watch Lung Cancer Gene report Lung cancer is the deadliest cancer in the world. It claims the lives of almost three million people a year. This cancer is hard to cure, but clues about the most effectiv
2007年VOA标准英语（一月）
By Scott Stearns White House 07 July 2006 President Bush says next week's summit of leading industrialized nations is a chance to show Iran that the world is serious about stopping it from developing a nuclear weapon. European diplomats expect Tehra
2006年VOA标准英语（七月）
By Carol Pearson Washington, DC 19 January 2006 watch Dementia Exercise report Experts estimate that more than 24 million people worldwide suffer from dementia, a loss of mental functions including me
2006年VOA标准英语（一月）
Todd: Hey, Michael, I just met your wife. She's a really nice woman. Really friendly. Mike: Yeah. yeah. We met a long time ago. We've been married a lot of years, now. Todd: How did you meet actually? Mike: Oh, gosh, we back when we were both student
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