iOS: https://youtu.be/v3dtV1HrvWw

Android: https://youtu.be/v3dtV1HrvWw (點選整條連結就可以到youtube app觀看)

繼續教大家自由式，馬上睇片啦~~

鍾意呢條片記得要subscribe方校長嘅youtube channel，同埋記得CLS (Comment, Like, Share) ，留言話俾方校長知有咩想學啦~~

方力申

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香港游泳學校

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