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By Larry London Washington, D.C. 31 July 2006 Watch JoJo report JoJo became the youngest American musician to have a song at number one on the music charts in 2004. Since then, she has starred in two films and will release her second album. VOA's La
2006年VOA标准英语（七月）
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
英语笑话（MP3+文本）
Sometimes theres a topic that doesnt quite defy explanation but certainly gives one pause in the undertaking. Lucky usthats where we find ourselves today. Why gerunds take a possessive before them. Oy. What's a Gerund? Lets start with what a gerund i
英语语法 Grammar Girl
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
英文语法词汇
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
英美文化