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Continue to ChatThe waist stool, braces and back towel are used in the wrong way. Only when you remember the five principles can you feel at ease. https://www.hizy.net/archives/the-waist-stool-braces-and-back-towel-are-used-in-the-wrong-way-only-when-you-remember-the-five-principles-can-you-feel-at-ease/