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This is an excellent ab exercise for strengthening your abs and core muscles. You can find a much more thorough and detailed text description of this exercise and how to do it at http://www.popularfitness.com under the link "Exercise" and "All-in-one Abdominal Exercise"
這是一種鍛煉腹部肌肉的絕佳方法。你可以在網站中找到更詳細的文本描述。
Thanks for watching video All-In-One Abdominal Exercise
謝謝收看本期“一站式腹部鍛煉法”節目。
