书面表达。
现在生活中有许多浪费现象，如：
1. 不随手关灯和电扇等；
2. 大量使用一次性物品；
3. 浪费粮食；
4. 浪费办公用品。
请你根据以上内容提示用英语写一篇短文，并说明节约的重要性。
注意：词数120左右。
参考词汇： 一次性产品：disposable products
____________________________________________________________________
________________________________________________________________________
________________________________________________________________________
One possible version
As is known to all, waste has become a more and more serious problem.
We can easily see many people do not turn off the lights or the electric fans immediately after they use
them; many disposable products are being used in our daily life; many students drop a lot of good food into
the garbage can. In the office, some equipment is often on for a long time but nobody is using it. What's
worse, a great deal of paper has been wasted.
In my opinion, we should call on more and more people to fight against waste. Only through these
measures can we reduce waste.