开放作文。
请根据下面提示，写一篇短文。词数不少于50。
In your English class, your teacher shows you the following picture. You are asked to describe the
picture and explain how you understand it.
参考词汇：鸵鸟 ostrich 蜗牛 snail
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One possible version:
An ostrich is running fast but living in a heavily-polluted city. On the other hand, a snail is crawling slowly
and enjoying a green and peaceful country life. Whether we should go fast or slow in our development, I think,
the painter has already given his answer.
In recent years, there are a lot of bad happenings on our earth-sand storms, floods, even nuclear leakages,
which has made our earth less suitable for living. This is all because humans are too eager and greedy for a
better life. They don't spend time thinking and planning before they start their work. Why not try a simple and
slower life style? I t may help solve our problem of environment.