The old words, without the wind and rain, how rainbow?

老话说，不经风雨，怎见彩虹？

youdao

Not experience wind and rain, how rainbow, no one can casually succeed! Come on! More different the new year!

不经历风雨，怎么见彩虹，没有人能随随便便成功！加油！新的一年更不同！

youdao

Could you tell us a little bit more them and also remind us how Rainbow got that name.

NPR: Chengdu Youths Discuss Life in China

The website explains how a rainbow is made from light and water - with help from the sun.

BBC: rainbow

D. from Yale, Halverson tells the tale of how the rainbow trout became the favorite stocked fish of the U.S. and beyond.

FORBES: Notable Fall Sports Books