價格：免費
更新日期：2017-06-10
檔案大小：13M
目前版本：1.0
版本需求：Android 4.0.3 以上版本
官方網站：mailto:vantuyenttbn91@gmail.com
To be good at any stroke, you need to heighten your feel for the water. For breaststroke, a heightened sense of the water is especially important in your arms. Sculling drills help improve your feel and teach you where you gain the most from your efforts. Executing proper stroke mechanics is also key. Here are some of the more common flaws seen in the arms.
