每日背誦第二期55
When it rains, the colors that make up white light separate because they bend at different angles when they pass through water. The result is the full spectrum of colors the human eye can see, as well as some that it cannot; at the outermost edges of a rainbow lie ultraviolet and infrared light.
下雨時，那些構(gòu)成白色光的顏色穿過水滴時以不同的角度被折射而散開，就形成了完整的光譜，其中有些顏色肉眼能看得到，有些看不到；彩虹的最外圍是紫外線和紅外線。
(短文節(jié)選,本篇始于：彩虹來自何方)
