你好!
The earth we are now living on is seriously damaged by human beings .The air is already polluted and there are many rivers are polluted too.For example,the yellow river.More and more trees are being cut down,so many animals can't find their house ,they are in danger of extinction now .What will our world be like in 200 years if this continues ?Can people survive in such an enviroment?
As a teenager ,we should do what we can to protcet the environment ,we can plant more trees on 3.12 and save water and energy.
I think we'll have a beautiful world again.
不知道你想要多长的,所以找了一篇不是很长的,望满意!