单词：diffraction elimination
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This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. Those of you following the World Cup know that at this stage there can be no more draws. Ties are broken during overtime play, or in a penalty kick shootou
Scientific American(六)月
英语演讲稿：D-Day Order You will bring about the destruction of the German war machine, the elimination of Nazi tyranny over the oppressed peoples of Europe, and security for ourselves in a free world. Your task will not be an easy one. Your en
英语演讲
World Bank President: Elimination of Poverty Possible World Bank President Jim Yong Kim says the problems of poverty, hunger and inequality are massive, urgent and a matter of survival for millions. We know that despite the dramatic successes of the
VOA标准英语2013年(四月)
Green Card Lottery Faces Elimination Under US Immigration Reform Two years ago Rafiq-ul-Islam won a U.S. permanent resident visa through the Green Card Lottery and came to the United States from Bangladesh -- with little more than the clothing he own
VOA标准英语2013年(五月)
By Lisa Schlein Geneva 02 May 2006 Environmentalists are calling for the elimination of the toxic chemical, DDT, which is still used in large parts of Africa to combat malaria. The continued use of DD
2006年VOA标准英语（五月）
叙利亚化学武器开始转移 UNITED NATIONS, Jan. 7 (Xinhua) -- A first shipment of chemical materials was moved from Syria on Tuesday, which initiated the process of transferring chemical weapons from the country to locations outside its territ
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