参考译文练习开始时运动员俯卧,双臂前伸,右手在左手背上。运动员左臂做一次完整划臂动作之后,左手移至右手背上。然后,运动员右臂划水,右手划水完成后,将手移至左手手背上,连续进行。这一练习有助于运动员集中注意力于一臂的划水动作上。也可手扶打水板做这一练习。应扶板后部 At the beginning of the exercise, the athlete was prone, arms outstretched, his right hand on the left hand back. Athlete left arm to do a complete arm after the action, the left hand to the right hand back. Then, the right arm of the athlete draws the water and after the right hand draws water, moves the hand to the left hand’s back for continuous operation. This exercise helps athletes focus on one stroke of the water. You can also hand the water board to do this exercise. Should be back plate