单词：X-ray wave length dispersive spectrometer
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说一口流利的英语，从简单的单词开始。 听听，读读，背背，今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 arm [ B:m ] He received a call to arms
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By Peter Fedynsky Washington, DC 27 December 2006 watch Iraq Prayers and Politics Sectarian violence in Iraq mostly involves mutual attacks by the country's Sunni and Shia Muslims. But Monday's Christmas holiday highlighted the plight of nearly one
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Up in arms At arm's length 在美国人讲话时，或从书刊报纸上，你经常可以听到或见到一些由手臂，就是英文里的arms这个字组成的成语或俗语。有些习惯用语从
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By Benjamin Sand Kabul 16 March 2006 Fugitive Taleban leader Mullah Mohammad Omar has vowed stepped up violence against U.S.-led forces in Afghanistan. Coalition forces say they are prepared. The rare
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Three months had passed. It was time for Tony to visit his dental hygienist again. The visit usually lasted two to three hours. The hygienist always went through a list of questions about his health. Then she took his pulse and blood pressure. Last,
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