您要查找的是不是：
- 纸质方便筷的构思与试制Design and Trial Production of Convenient Paper chopsticks
- 纸质方便筷耐水表面涂层的制备Preparation of waterproof coating for papered chopstick
- 我知道了，回收再使用有利于环境保护，节省有限的资源。比如我们回收再使用一次性的方便筷，就可以少砍伐一些树木。Neil: The main reason to recycle things is to help protect the environment. By using something again and again we use fewer resources.
