单词：phenylketonuric
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Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s
万物简史
This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro
Scientific American(三)月
This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ
Scientific American(四)月
Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the
Scientific American(十一)月
By Doug Levine Washington 01 October 2006 Jazzman Duke Ellington had millions of fans around the world, but perhaps his most-loyal audience was in his hometown, Washington, D.C. Duke's legacy lives on in Washington with the 2nd Annual Duke Ellington
2006年VOA标准英语（十月）
Serbia Declares 3 Days of Mourning for Flood Victims 塞尔维亚哀悼洪灾遇难者 Serbia has declared three days of mourning for more victims of the worst floods to hit the country in more than a century. Severe flooding this month has killed at
VOA标准英语2014年(五月)