单词：covalent binding
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On the final day of UN climate talks in Copenhagen, African leaders have renewed calls for a legally binding deal to fight climate change. Selah Hennessy | London 18 December 2009 Photo: AFP Sweden's PM Fredrik Reinfeldt (L), European Commission chie
VOA标准英语2009年(十二月)
Science and Technology Cancer and obesity Malignant flab 科技 癌症与肥胖 恶性松弛 At last, an understanding of how overeating causes cancer 吃得过多如何导致癌症 OVERWEIGHT women are more likely to develop breast cancer than lean
经济学人科技系列
By Anjana Pasricha New Delhi 07 February 2008 India is sticking its position that it cannot make any binding commitments on reducing greenhouse gas emissions. Anjana Pasricha reports on an international conference on sustainable development being hel
VOA常速英语2008年（二月）
Three gay men from Thailand have tied the knot in what is thought to be the world's first three-way same-sex marriage. 泰国三名男同性恋日前喜结连理，被认为是全球首例同性三人婚姻。 Happy newlyweds Joke, 29, Bell, 21 and A
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The Art of Cry When Mrs Johnson entered Belli's room, she found that he was binding up his thumb. What's the matter with you? she asked. It is because of that hammer. Belli answered. But I didn't hear you cry. Oh, I thought you were not in just now.
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