The direction of rotation of anything depends on which direction you're looking - from the back clock hands move anti- clockwise !
并且，螺旋运动的方向取决于你观察的角度---钟从背面看就是“逆时针”运动的了。
The direction of rotation of anything depends on which direction you're looking - from the back clock hands move anti- clockwise !
并且，螺旋运动的方向取决于你观察的角度---钟从背面看就是“逆时针”运动的了。
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