单词：piston rod guide cap
活塞杆导板盖
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INTRODUCTION TO ACT I Today on TUNING IN THE U.S.A., we are on a train going to Washington, D.C. Ellen Stewart is taking Alexandra Pappas to visit the nations Capital. They are, in many ways, like other tourists. They want to visit the Air and Space
发表于:2018-11-30 / 阅读(99) / 评论(0)
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每日攻克5词
Scientists in Australia are developing a thinking cap that could unlock our hidden genius, by switching on and off certain sections of the brain. Researchers at the University of Sydney think their experiments show that we all have hidden creative t
发表于:2019-01-13 / 阅读(81) / 评论(0)
VOA标准英语2008年（十月）
VOA标准英语2008年（十月）