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(77) / 评论(0) 分类 Scientific American(三)月

One of the world's most amazing migration is about to begin in earnest: 300 million monarch butterflies spread across North America are about to converge on small forests in the mounts of Mexico. This year, the butterflies have an unusual company as

发表于:2019-01-08 / 阅读(119) / 评论(0) 分类 2005年NPR美国国家公共电台

By Robert Berger Jerusalem 14 November 2009 An ultra-orthodox Jewish man is seen next to Intel's Jerusalem office building, 14 Nov 2009 Alleged violations of the Jewish Sabbath by a top international company prompted religious protests in Jerusalem

发表于:2019-01-14 / 阅读(58) / 评论(0) 分类 VOA标准英语2009年(十一月)

China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co

发表于:2019-01-19 / 阅读(102) / 评论(0) 分类 2017CRI中国国际广播电台

Everyone who has eaten instant noodles before knows how it looks like. It is very easy to cook it instantly by putting the noodles into the boiling water and add in those MSG packets, together with your other ingredients like eggs or vegetables. Howe

发表于:2019-02-05 / 阅读(56) / 评论(0) 分类 阅读空间

靛蓝青年布:Indigo chambray 人棉布植绒:Rayon cloth flocking PVC植绒:PVC flocking 针织布植绒:Knitting cloth flocking 珠粒绒:Claimond veins 倒毛:Down pile making 平绒:velveteen (velvet-plain) 仿麂皮:Micro suede

发表于:2019-02-18 / 阅读(69) / 评论(0) 分类 实用英语