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Function: require_once
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1前言 著名语言学家Greg Thomson说的：“外语学习的原理是如此之复杂，以 至于没有人能说清楚；但掌握语言的过程又是如此之简单，以至于不需 要说清楚。”讨论语言学习的原理，是件非常复杂的事，在下当然也没 把握能描述得很清楚。而且因为外语...
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