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Դzhanqunjishuduange    ʱ䣺2019-11-21 16:33:02  ֺţ С     

4Not ignorance, but the ignorance of ignorance, is the death of knowledge.

台湾宾果单双10Learning without thought is useless; thought without learning is dangerous.Ͼ

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4Learn to creep before you leap.Ͼ




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