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10分钟瘦手臂训练！不愧是JO姐太炸裂了！酸爽~
所有女生都去练这个开肩薄背训练，动作简单，新手大基数姐妹都可以轻松跟上，手臂拜拜肉能很好的锻炼到，练完整个手臂都不是自己的了，酸到不行，练后记得多拉伸哦 跟练:JO姐
瘦手臂后背！88/154
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