标签：tropical 相关文章
PanamaResearchInstituteDedicatedtoEarth'sEcosystem Every year, about 1,000 scientists from around the world visit the Smithsonian Tropical Research Institute in Panama. The Institute is one of the oldest and largest facilities of its kind in the worl
VOA标准英语2011年(九月)
By Zulima Palacio Kauai, Hawaii 18 June 2007 The Hawaiian archipelago represents the most isolated group of islands in the world. Plants and animals that are common to many people elsewhere only made it to these islands in the last few hundred years
2007年VOA标准英语（六月）
African Rainforests Continue to Face Challenges The African continent contains about 30 percent of the worlds global rainforests, second only to the Amazon. Scientists and conservationists met at Oxford University to discuss changes the forests are e
VOA标准英语2012年(一月)
Massive Tropical Storm Brings Death, Flooding to US East Coast Days after withstanding a rare earthquake, large swaths of the densely populated U.S. East Coast have weathered Irene, a once-powerful hurricane later downgraded to a tropical storm. Iren
VOA标准英语2011年(八月)
Work on Ebola Treatments Speeds Up to Address Outbreak 加速研发治疗埃博拉病毒药物应对疫情 The World Health Organization has approved the use of experimental drugs for people who have Ebola, a virus that already has claimed more than
VOA标准英语2014年(八月)
By Brian Wagner Miami 13 December 2007 Emergency officials in the Dominican Republic say at least 22 people have been killed in flooding caused by Tropical Storm Olga. In Miami, VOA's Brian Wagner reports many of the victims were killed by waters rel
VOA常速英语2007年（十二月）
You are there, on the most exciting, nerve-shattering journey in the history of man! Fifty years ago, it was easy for us to imagine Venus, closer to the Sun and wrapped in clouds, to be our scorched, tropical sister, swarming with life. There was thi
自然百科2012年
By Jessica Berman Washington 01 April 2008 For the past 50 years, the development of new drugs to treat tropical diseases that affect nearly one billion people has languished because it has not been profitable for drug manufacturers in the West. But
VOA常速英语2008年（四月）
By Nancy-Amelia Collins Jakarta 14 February 2007 The World Health Organization has called for a renewed commitment from governments around the world to combat tropical diseases that affect a third of the world's population and cause social and econo
2007年VOA标准英语（二月）