The most physically demanding stroke, the butterfly features the simultaneous overhead stroke of the arms combined with the dolphin kick.
对身体条件最苛求的泳姿，蝶泳的特色是两臂同时越过头顶结合海豚式打腿。
The most physically demanding stroke, the butterfly features the simultaneous overhead stroke of the arms combined with the dolphin kick.
对身体条件最苛求的泳姿，蝶泳的特色是两臂同时越过头顶结合海豚式打腿。
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