the light is spread into colors as if by a prism.

光線被分散成各種顏色，就像通過一個稜鏡一樣。

You might see red light from one drop, yellow from another, orange from a third, and so on.

你可能從一個水滴中看到紅光，從另一個水滴中看到黃光，從第三個水滴中看到橙光，以此類推。

Each part of your rainbow coming from a different raindrop

你的彩虹的每一部分都來自不同的雨滴