单词：pleuropericardial canals
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Romantic Venice 浪漫水都威尼斯 What images come to mind when you think of a trip to Venice? 想到威尼斯一游，你的脑海中会浮现出什么画面？ No doubt you imagine yourself taking a romantic gondola ride along narrow canals and
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A BACKWARD LOOK 内容回顾 Airplanes, radios, dog-teams, horses, trainswe have read about all these ways of carrying men or sending messages. 飞机、收音机、狗队、马、火车，我们已经读了所有这些关于客运和通信的方式。
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Transcript by myconsent One thousand years before Columbus, there were pyramid builders, warriors -- the architects of an empire in South America. The Tiwanaku(蒂瓦纳科人) lived in a valley of Lake Titicaca（的的喀喀湖） for 1,500 hundred
自然百科2009年
GWEN IFILL: Next: The coast of Louisiana is crumbling into the Gulf of Mexico at an alarming rate. Over the last 80 years, it's lost nearly 2,000 square miles. That's as big as all of Rhode Island. Now a political fight has broken out in the state le
PBS访谈社会系列
A one-dollar bill met a twenty-dollar bill and said, Hey, where have you been? I haven't seen you around here much.The twenty answered, I've been hanging out at the casinos(娱乐场）, went on a cruise and did the rounds of the ship, back to the Un
趣味英语
In the podcast about Mr Speaker, I told you that I was going on holiday. I said that I would be the captain of a ship and sail away to new and interesting places. So, where did I go on my ship? Perhaps I sailed across the Atlantic. Perhaps I visited
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