看了您老自由泳的錄像,建議在youtube.com上搜一下Total Immersion。這是個目前流行的遊法,省力,又快,特別適合長距離的老年人。
看了您老自由泳的錄像,建議在youtube.com上搜一下Total Immersion。這是個目前流行的遊法,省力,又快,特別適合長距離的老年人。
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