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打沙袋容易打折手腕，说明手腕力量不够！两个动作练强手腕！
分享两个提升手腕力量训练的动作。如果你在打沙袋过程中容易打折手腕，一定要多练习这两个动作，本人真心体验和推荐，值得收藏的视频！
零基础搏击教学23/38
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