单词：crib-type cofferdam
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1. The government says US home prices fell in April at their fastest rates since 1991. Meanwhile, the Senate has overwhelmingly voted to speed up work on a 300-billion dollar foreclosure rescue plan. And a private survey says consumer confidence is
美联社新闻一分钟2008年6月
Synthetic biologists design and make biological devices and system for useful purposes. Conservation biologists study biodiversity to protect species and habitat.The two group don't talk to each other much.Conservation biologists cannot refer thus or
Scientific American(四)月
【生词预览】 pastor 牧师， pleadfor 乞求， coffer 资金 ,congregation 会众 【笑话原文】 GoodNewsandBadNews Thepastorofmychurchhatestopleadformoney.Butwhenthecofferswererunninglow,hehadnochoice. There sgoodnewsandthere sbadnews, h
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EXPLORATIONS - Hoover Dam By Paul Thompson Broadcast: Wednesday, July 28, 2004 (MUSIC) VOICE ONE: This is Bob Doughty. VOICE TWO: Hoover Dam. And this is Steve Ember with EXPLORATIONS in VOA Special E
Explorations
置换本身是化学概念，是指在化学反应中，一种活泼性比较强的元素替代了活泼性不强的元素，形成新的化合物的过程。 与此类似，置换联想就是将一个生词之中的一部分（可以是字母或字母组合）用其他的联想单位进行置换，形成一个已经认识的熟词。我们可以用这个熟词、参与
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The Little Pear GirlOnce upon a time, a peasant worked hard to make a living from his land. Every year his pear tree produced four basketfuls of fruit which had to be given to the king, a greedy ruler who grew rich at the expense of the poor. One yea
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