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VOA标准英语2009年-Doctors Use Smart Phones to Make Good

Rose Hoban | Durham, North Carolina 16 December 2009 Mobile phones have revolutionized communications in many countries making it possible for people in distant and rural places to connect. Now high-tech smart mobile phones may be on the verge of rev

发表于:2019-01-13 / 阅读(53) / 评论(0) 分类 VOA标准英语2009年(十二月)
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