What good are trees?完成对话
题目
What good are trees?完成对话
答案
They are important to the planet.They can freash the air and prevent the earth from being taken away by water.They can also stop the wind from blowing the soil away.At the same time,they can be made i...
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我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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