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

老话说，不经风雨，怎见彩虹？

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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！

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You all know how when you take a crystal prism and pass a beam of sunlight through it, you get a spectrum, which looks like a continuous band of rainbow colors.

你们都知道，拿起一个水晶棱镜，让一束阳光通过它，就会得到一个光谱，看起来就像一条连续的彩虹色带。

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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