单词：long-run average cost curve
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Chapter 27 A story Once upon a time in an old forest, there was a poor wood cutter cutting wood by the lake. One day, his axe accidently fell into the lake. The poor wood cutter didnt know how to swim, so he could do nothing but sat by the lake and p
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Isnt it amazing? ten-year-old Violet Alden said as she gazed out the back seat window of the Aldens rented van. No matter where you look, all you see is corn, corn and more corn. I like corn-on-the-cob, said Benny, Violets six-year-old brother. Iowa
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The StonecutterOnce upon a time there was a stone cutter. The stone cutter lived in a land where a life of privilege meant being powerful. Looking at his life he decided that he was unsatisfied with the way things were and so he set out to become the
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Now, the VOA Learning English program Words and Their Stories. On this program, we explore words and expressions in the English language. We also explain how they developed and how English speakers use them today. We try really hard to make this prog
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Bob McConnell, a retired engineer, set up a new wireless router in his home this year to get faster Internet speeds. Instead, he got the opposite, with his iPad often getting no wireless connection in his bedroom 为了获得更快的上网速度，退
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HARI SREENIVASAN: For further perspective and the latest developments on the mass shooting at the Orlando nightclub, I am joined by Skype by the managing editor of The Orlando Sentinel, John Cutter. John, I know it's a busy day in your newsroom, but
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