初学者游泳的基本要领自由泳 自由泳二次腿和六次腿交替使用 自由泳手部动作该如何做交替划水 双腿交替打水是自由泳前进的动力 自由泳双腿打水与交替打水谁快 自由泳是双腿齐摆还是两腿交替摆 初学游泳基本动作自由泳 自由泳初学者正确游泳姿势 初学游泳自由泳的技巧与方法 初学自由泳先学什么动作中文版 【学自由泳】新手入门第一课——水中行走、游泳呼吸、交替打腿
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