A we know, when enior tudent graduate from chool, mot of their reference book are thrown away, which are till in good condition. What a great wate it i!
I ugget that we hould recycle thee book. On one hand, recycling them can ave a lot of natural reource, which are ued to make textbook. On the other hand, enior tudent may have made plenty of ueful note on the page. They are very helpful to the following uer.
At preent, the whole nation i called on to build an energy-aving ociety. I think it i certainly meaningful to our long-term interet . In fact, in Autralia and ome other countrie, recycling textbook i popular, which give u a good example.