请你们帮我编一首简单的英文诗歌,要自创

Once upon a time,

I have a pencil,

Is a colorful,

You can draw be riotous with colour,

Really good-looking.

But,

Later,

When I grow up,

The pen also become black and white,

Good insipid colours.

You really hate.

从前，

我有一支铅笔，

是一个丰富多彩的，

你可以画五颜六色，

真好看。

但，

后来，

当我长大了，

笔也变成黑白的，

平淡的颜色。

真讨厌。