illustrate是阐述的意思，而illuminate则是照亮的意思，区别可以从以下例子看出：
You have illustrate your idea very clearly, it illustrate my brainstorm which was blocked for a long time. 你把你的想法说明的很清楚，照亮了我被堵了很久的头脑风暴。
水利万物而不争,
而万物莫能与之争。
