A.
击球后,不需要做任何调整动作。After block, there is no need to make any adjustments.
B.
击球后,调整身体重心并迅速还原。After block, adjust your body weight and recover fast.
C.
击球时,不需要注意引拍和挥拍击球两个过程 。When hitting the ball, you don’t need to pay attention to backswing and swing.
D.
击球前,不需要做好准备姿势。 Before hitting, you don’t need to get a good ready position.