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膝の可動解説：完全版
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■ENGLISH
Movement of the Knee : Complete version
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膝盖的可动解说：完整版
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脚の違和感と修正法
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Leg: Summary of the common mistake and the correcting method
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■中文
脚部的违和感以及修正总结
爱发电：AFDIAN
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