方向: direction; orientation 短语和例子明确斗争的方向 clarify the orientation of the struggle; 在森林里迷失了方向 lose one's way in the forest; 坚定正确的政治方向 a firm and correct political orientation; 指明前进的方向 point out t
垂直方向: elevation directionnormal directionperpendicular directionvertical directionvertical sense
垂直: perpendicular; vertical; squareness; verticality; perpendicularity 短语和例子两线垂直相交。the two lines meet at right angles. 设 ab 垂直于 cd。let ab be perpendicular to cd. 当表面与射线垂直时，射线的强度最大。when a surfa
