士里冈达

material scientists admire spider silk for being lightweight and strong.now another arthropod product is getting into the act insect cuticle,the tough flexible material is inside insect skeleton.researchers at harvard * institute for biological inspi

发表于:2018-12-02 / 阅读(174) / 评论(0) 分类 Scientific American(十二)月

This is an ode to the mother goddess, that most of us in India learn when we are children. 有一首关于印度神母的颂歌,是我们大部分的印度人从小就学习的。 I learned it when I was four at my mother's knee. 在我四岁的时候

发表于:2018-12-19 / 阅读(224) / 评论(0) 分类 TED演讲教育篇

By Nico Colombant Dakar 13 November 2006 President of the Central African Republic Francois Bozize Rebels advancing in the Central African Republic say they want talks with the government, but President Francois Bozize has refused. Mr. Bozize is rec

发表于:2019-01-08 / 阅读(219) / 评论(0) 分类 2006年VOA标准英语(十一月)

DAVID GREENE, HOST: Well, the future of Brexit is uncertain this morning. So is the future for Prime Minister Theresa May. Really, so is the future of Britain. The prime minister is facing a vote of no confidence today. This comes after her governmen

发表于:2019-03-04 / 阅读(161) / 评论(0) 分类 2019年NPR美国国家公共电台1月
学英语单词
a prince among men
absolute black
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