demonstration forest

例句：

1. 1. The demonstration forest is a great place for learning about sustainable agriculture.
   示范林是学习可持续农业的好地方。
2. 2. In the demonstration forest, visitors can observe how trees are planted and maintained.
   在示范林中，游客可以观察树木是如何种植和养护的。
3. 3. The demonstration forest is a symbol of environmental protection and sustainable development.
   示范林是环境保护和可持续发展的象征。