单词：oxide content
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Welcome to This I Believe, an NPR series presenting the personal philosophies of remarkable men and women from all walks of life. For our series This I Believe, we receive thousands of essays from young people. Today we hear from one of them. Kamaal
2007年NPR美国国家公共电台
台湾籍旅美老师今天交给我们的句子是： I have a dream,that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character. 我有一个梦想，那就
留美老师带你每日说英文
Facebook published detailed guidelines Tuesday for what users can and cannot post on the social media service. Earlier this month, lawmakers called on Facebook chief Mark Zuckerberg to appear in Congress. They demanded that his company take more step
2018年VOA慢速英语(四)月
Two-week conference aims to achieve legally binding agreement to cut greenhouse gas emissions and has been billed as last best chance to clinch a deal. Sonja Pace | London 04 December 2009 Smoke is seen emitted from a chimney of the cooling towers of
VOA标准英语2009年(十二月)
电脑英语--常见硬件篇CPU：Central Processing Unit，中央处理单元，又叫中央处理器或微处理器，被喻为电脑的心脏。 RAM：Random Access Memory，随机存储器，即人们常说的内存。 ROM：Read－Only Memory，只
天天商务口语
The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in
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