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					There are many commonly held beliefs about eye glasses and eyesight that are not proven facts. 出自-2011年6月听力原文
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					We have all heard some of the common myths about how eyesight gets bad 出自-2011年6月听力原文
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					However, although eyestrain may cause some pain or headaches, it does not permanently damage eyesight. 出自-2011年6月听力原文
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					What does the speaker want to tell us about eyesight 出自-2011年6月听力原文
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					It is the best way to restore damaged eyesight. 出自-2011年6月听力原文