side opposite an angle

基本解释

The sine of an angle is the ratio of the length of the opposite side to the length of the hypotenuse.
正弦是股与弦的比例，余弦是余下的那条直角边与弦的比例。
Using a mirror to look a item , the reflect light from the mirror will reflects from an opposite side as the same angle.
用镜子看物体时，从物体发出的入射光线以相同的角度沿相反的方向反射回来。
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The viewing angle from the building is slightly inclined, giving an even more dramatic view of the strikingly beautiful mountains on the opposite side of the narrow valley.
建筑的视角略有倾斜，从狭窄的山谷对面看到美丽的山景，给人一种戏剧化的视觉效果。