下蹲屈臂用到了哑铃，模仿了从地上拎干洗篮、电脑包或小孩的动作。
The squat to bicep curl USES weights and mimics the action of lifting a laundry basket, laptop bag or young child from the floor.
投篮臂的运动指向点更好地控制了投篮臂的运动方向和引导了投篮臂的加速挺直，以及充分完成屈腕过程中的中指拨球动作。
The target point helps to direct the movement of the shooting arm and accelerate the straighten of the shooting arm, thus fully complete the flicking of the ball during the process of cock wrist.
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