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From NPR News in Washington, I'm Lakshmi Singh Egyptian president Mahmud Mansour is out .Hundreds of thousands people in Cairo burse into cheer on news of today military coop. Under nightfall this hour flag are waving, people are celebrating into rea

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2013年NPR美国国家公共电台7月

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Moreover, the key at the farther end of the line could be so arranged as to make an impression on a piece of paper that was slowly drawn under it by clockwork. 而且，在这根导线更远一端的键可用于在一张纸上留下压痕，这个压痕

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320. Treaty with Great Britain, 1842. 320．与大不列颠签订条约（1842年） Perhaps the most important event of Tyler's administration was the signing of the Treaty of 1842 with Great Britain. 也许泰勒政府最重要的一件事是1842年与

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CHAPTER 5 An Old Flintlock Gun The Aldens found a fine motel. The man said he would take Watch if they tied him up. Watch did not like this at all, but he lay down by the beds. After breakfast on Sunday morning, Henry said, The men wont be working Su

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CHAPTER 4 The Potato Pit You go on ahead, Sim, said Mr. Alden. Well follow if you are sure your wife wants to make sandwiches for us. Yes, Im sure, said Sim. We got lots of milk, too. We can fill up your Thermos bottles. Well drink more milk than tha

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7 小木屋之谜 The Woodshed Mystery

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CHAPTER 2 Making Plans What day is this? said Jessie. Friday. Couldnt we go tomorrow and see the place, Grandfather? That is just what I was thinking, said Mr. Alden. We could stay all day Sunday and get back for the last week of school. Of course He

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坚持不懈，直到成功。我们每天的奋斗就像对参天大树的一次砍击，头几刀可能了无痕迹。每一击看似微不足道，然而，累积起来，巨树终会倒下。这恰

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2006年NPR美国国家公共电台

VOA慢速英语 2007 0919b

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One of my friends always seems to have personal problems. Sometimes its a relationship, sometimes its family, and sometimes its her. Im not sure why she has so many personal problems and I think many of her problems arent really problems at all. Shes

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Dialogue 1 新春口语 Mark:Hey, Jing Jing! Long time no see! Howd your New Year holiday go? 马克：嘿，京晶，好久不见啊！春节假期过得如何？ Jingjing:It was great! But it went by too quickly! Wow, Mark, it looks like youve pack

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6-amino-1-naphthol-3-sulfonic acid

accentuate

alkylphosphine

all-trans retinoic acid