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| 2019/11/19 19:55:45瀏覽315｜回應0｜推薦1 | |
| 滾輪運動時，身體應與地面平行，全身都應用力，速度要快，才有效。 The notice for doing roller slide. When doing roller slide, we should keep our body parallel with the ground. It will be effective to flex all muscle and keep speed. |
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