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肩可動（前面）の基本・可動の仕組みと注意点
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Movement of the Shoulder: Front
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■中文
肩膀可动的基本（前面）・如何动作和注意事项
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肩の違和感と修正法まとめ
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Shoulder : Summary of the common mistake and the correcting method
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肩膀的违和感以及修正总结
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