彩虹的真面目

JOJO：“我操作展項(xiàng)時(shí)看到的是一個(gè)圓形的彩虹，為什么和你之前說(shuō)的七彩橋不一樣？”

彩虹：“其實(shí)我本來(lái)就是圓形的。只不過(guò)人們站在平地上，只能看到我的一部分。另一部分在地平線以下。”

JOJO： I saw a circular rainbow. Why is it different from the colorful bridge you said before？

Rainbow： In fact，I am originally circular. It’s because people stand on the ground and thus they could only see part of me. The other part is below the horizon. The essence of a rainbow is the projection of the sun. Therefore，a rainbow is actually circular like the sun.

JOJO： Then how can I see a complete rainbow？

Rainbow： You can see most of me when you stand on a mountain. If you are on a plane，you can see complete me，a circle rather than an arch.

JOJO：“那我怎么才能看到完整的你呢？”

彩虹：“當(dāng)你站在高山上時(shí)就可以看到大部分的彩虹。如果在飛機(jī)上，會(huì)看見彩虹是完整的圓形，而不是拱形。”