adjective [原级] 荫蔽的；色彩较暗的
Here is a better picture. I claim that what will be going through C is this shaded parallelogram to the left of C. 这里有幅更好的图。我说经过 C 的是 C 左边的这个阴影平行四边形。
verb [vt. 及物动词] 遮蔽住；使阴暗（shade 的过去分词）
She shaded her eyes against the sun. 她遮住眼睛避免阳光直射。
