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      People may easily ignore（忽视） that we are living in a world full of different c, such as red, blue, green, black, v and so on. We can never tell how many kinds of them there are. But we all know that colors are very important in people's e life.

The sky is blue and white. The trees are green and yellow. We can even say that s is freshing green, summer is hot blue, autumn is golden yellow and winter is c white. I one day all the colors d, what will it be to live in this world. We feel bored. We can't even tell the d between the sky and land, between trees and houses.

The world is c. And we can't live w colors.