Hands behind to elbow as the center, clockwise to do circular motion, then rotate counterclockwise.

将双手置于脑后，以肘关节为圆心，顺时针做圆周运动，然后再逆时针转动。

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Hands behind to elbow as the center, clockwise to do circular motion, then rotate counterclockwise.

将双手置于脑后，以肘关节为圆心，顺时针做圆周运动，然后再逆时针转动。

youdao