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This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because

发表于:2018-12-24 / 阅读(79) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(107) / 评论(0) 分类 Scientific American(四)月

Police in Sweden say they believe they have identified the man who blew himself up in the country's capital on Saturday. The man is Taimour Abdulwahab, a Swedish citizen who has been living in Britain for the past decade. Sweden's Chief Prosecutor To

发表于:2019-01-13 / 阅读(65) / 评论(0) 分类 VOA标准英语2010年(十二)月

Young Muslims Radicalized Online LONDON Young Muslims are being radicalized in their bedrooms through direct contact with Islamic State fighters via the Internet, according to terror experts. There are growing concerns authorities and Internet provid

发表于:2019-01-14 / 阅读(53) / 评论(0) 分类 VOA标准英语2015年(三月)

RACHEL MARTIN, HOST: All right. Over the years, hundreds of people left the U.S. to go fight with ISIS in Syria and Iraq. Only 14 of them came back. Two of them are women with extraordinary and similar stories. Both say their husbands forced them to

发表于:2019-01-17 / 阅读(58) / 评论(0) 分类 2018年NPR美国国家公共电台8月

I'd like to sit around and dream you up a perfect miracle 我愿静坐一旁,与你一同设想一个完美的奇迹 I'd part the clouds and have the sun proudly shining on you 我愿驱散层云,让旭日之光芒骄傲地照耀着你 I'd take t

发表于:2019-02-01 / 阅读(60) / 评论(0) 分类 听歌学英语