单词：trigonocera rivosa
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This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan
Scientific American(八)月
By Franz Wild Abidjan 06 July 2006 People from several sides of Ivory Coast's conflict are disappointed at the results of a meeting between the government and rebels that was chaired by U.N. Secretary General Kofi Annan. Franz Wild reports for VOA f
2006年VOA标准英语（七月）
Scientists at the Massachusetts Institute of Technology have turned to Mother Nature for inspiration, inventing a device that mimics photosynthesis, the process plants use to convert sunlight and water into usable energy. MIT chemistry professor Dani
VOA标准英语2011年(四月)
JUDY WOODRUFF: Millions of viewers began tuning into college basketball's March Madness games today. Billions of dollars are paid for the TV rights. Last year, an average of 11 million people tuned in throughout the month. And yet one question looms
PBS访谈娱乐系列
JUDY WOODRUFF: Millions of viewers began tuning into college basketball's March Madness games today. Billions of dollars are paid for the TV rights. Last year, an average of 11 million people tuned in throughout the month. And yet one question looms
PBS访谈娱乐系列
By Phuong Tran Dakar 11 January 2007 Some victims of last year's toxic waste dumping in Ivory Coast are staging a hunger strike to demand promised government compensation, while others are joining lawsuits. At least 10 people died, and thousands wer
2007年VOA标准英语（一月）