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Hello， I am a piece of rainbow。 I have seven colours， they’re red， orange， yellow， green， blue and violet。 So I’m beautiful， right?
One colour of mine can symbolize a thing。 For example， red is a symbol of revolution and blue is a symbol of the sky。
But you can only see me after a rainy day because I’m from the lights’ dispersion。 So I’m very perfect。 Now people make some crystal ornament like me and they’re expensive。 So I’m sure they all love me---a piece of rainbow。