单词：mattacin
单词：mattacin 相关文章
By Nico Colombant Dakar 31 July 2006 In West Africa's Sahel region, which has had poor rain over the past few decades, scientists and human rights activists are hard at work trying to combat some of the many negative effects of desertification - the
2006年VOA标准英语（七月）
Millions More Children to Receive Vaccines More than one million children die each year from severe diarrhea and pneumococcal disease. Today (Tuesday), the GAVI Alliance announced an expanded campaign against the two leading killers of children world
VOA标准英语2011年(九月)
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The True Story of Pocahontas Pocahontas is one of the most famous figures in American history. Many books and films portray her as a beautiful American Indian princess who made sacrifices to serve British colonial interests. These stories also sugges
2017年VOA慢速英语(十一)月
US Scientists Expand Scope of HIV Vaccine Study The worlds largest ongoing HIV vaccine study has been expanded to consider multiple ways a vaccine might boost immune response to the AIDS virus. The U.S. Institute of Allergy and Infectious Diseases (N
VOA标准英语2011年(八月)
Broadcast on Coast to Coast: November 7, 2002 Rebroadcast on VOA News Now: November 10, 2002 AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER -- slang and idioms in American politics. RS: Tuesday was Election Day, and Slangman Da
词汇大师(Wordmaster)
By Jessica Berman Washington 11 May 2006 French researchers at the Sanofi Pasteur Institute say they have developed a bird flu vaccine that, so far, appears to be safe and effective in humans. But obs
2006年VOA标准英语（五月）