paper stuff

例句：

1. 1.The printer needs a lot of paper to print the report.
   打印机需要很多纸张来打印报告。
2. 2. The paper is too thin, it's not easy to write on it.
   这张纸太薄了，不容易写字。
3. 3.Paper is a renewable resource that can be used over and over again.
   纸是一种可再生资源，可以反复使用。