单词：silicifaction
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14 A Rare Fossil Record The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a
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Spreading the World… Silbo Style By Susan Zimmerman Discovering an ancient whistling language on a tropical Atlantic island 1 All eyes and ears are upon teacher Isidro Mendoza when he enters the cla
彭蒙惠英语
5人 Actors: Tavern Keepe:(男主角) Young Man Keeper's Wife(女主角) Young Man Old Man Summary: Once upon a time, there was a tavern. Travelers and hunters would exchange silver ingots for copper coins and eat some food there. The tavern keeper a
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By Robert Berger Jerusalem 27 June 2006 Palestinian representatives of the main political factions attend a press conference in Gaza City, Tuesday, June 27, 2006 Rival Palestinian factions have agreed on a document implicitly recognizing Israel. Isr
2006年VOA标准英语（六月）
BBC Learning English People and Places Sun Hai Nin SIG Sun Hai Nin: Well, hello everybody Im Hai Nin, Im from China and now Im in London. William:And Im William Kremer welcome to People and Places. You just heard a young Chinese Woman, Sun Hai Nin.
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Residents in Mogadishu, Somalia say they fear the apparent murder of the director of the U.N. Development Program there may cause aid groups to further scale down their operations and deepen the country's humanitarian crisis. As VOA Correspondent Al
VOA标准英语2008年（七月）