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。
2
First start in clockwisedirection then repeat in an anticlockwisedirection.
首先按顺时针方向活动眼睛,然后逆时针方向活动。
3
One has only to provide it with a vectorial direction, here anti-clockwise-this is governed by the fact that, at least in our writing, you read things from left to right.