《S자 접영》과 《I자 접영》의 가슴누르기,템포 차이 ... - YouTube
... 차이 (Feat. 자유형 ... 힐링수영 Healing Swim•67K views · 6:45 · Go to channel · 둘 중 어느 스타 ...
《S자 접영》과 《I자 접영》의 가슴누르기,템포 차이 (Feat. 자유형 배영 롤링 설명) - YouTube

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