绝美！女生一定要练背，背薄一寸，年轻十岁
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| MP4 | N/A | 480P | Download |
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| MP4 | N/A | 360P | Download |
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| MP4 | N/A | mp4a.40.2 | Download |
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因为人体的后表链筋膜是从额头开始，练背不仅能挺拔体态，还能提拉面部，所以经常练背的女生看起来要比同龄人年轻3-5岁。
今天带大家练一节5分钟快速瘦后背，坐着练习，每天练习2-4次，练习1周变化就比较明显了，并且人更挺拔了，体态也变好了
今天带大家练一节5分钟快速瘦后背，坐着练习，每天练习2-4次，练习1周变化就比较明显了，并且人更挺拔了，体态也变好了
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