单词：Piptanthus tomentosus
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Many people regard summer as a time for relaxing, eating ice cream, and...ouch! I just got bitten by a mosquito! For centuries, people have been searching for effective ways to prevent mosquito bites. What they have been looking for is mosquito repel
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Time again for StoryCorps. We have been listening in this oral history project crisscrosses the country. Today the story of the late Wallie Earl Dow. He was a man who often found himself on the wrong side of the law. Time and time again his exploits
2007年NPR美国国家公共电台
By Mike O'Sullivan Los Angeles 20 December 2006 The Planetary Society, an organization that promotes space exploration, has teamed up with NASA to send a digital greeting card to Mars aboard the Phoenix lander, an unmanned space probe, on a mission
2006年VOA标准英语（十二月）
By Barry Wood Mitrovica, Kosovo 15 February 2007 watch Kosovo Student report Kosovo On February 2nd the United Nations envoy for Kosovo, Martti Ahtisaari, delivered his plan for the future of the breakaway province in southern Serbia. If implemented
2007年VOA标准英语（二月）