" Go get Pepper, " we urged Mom. We all bounced like eager children.

“去找 Pepper，”我们催促妈妈。我们都像渴望的孩子一样蹦蹦跳跳。

You see, when light shines off an object, like your face and hits a super smooth surface, the rays of light can all bounce back at the same exact angle.

当光线从物体（例如你的脸）上照射到超光滑的表面时，所有光线都可以以相同的精确角度反射回来。