这被称为“右手”坐标系统，因为你右手的大拇指、食指和中指可以被用来表示三个方向。
This is called a "right-handed" coordinate system because the thumb and first two fingers of your right hand can be used to represent the three directions.
曲面的方向有点向后向上,应该差不多像这样，那么现在你的中指,指的方向就是法向量的方向了。
That one would be pointing kind of to the back slightly up maybe, so like that. And now your middle finger is going to point in the direction of the normal vector.
坚守祂在充满许诺的的启示中指给你的方向吧！
Hold to any directions you received with the promise-filled vision.
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