natural forests

• 天然林

natural forests的用法和样例：

例句

1. Study on Genetic Structure and Genetic Diversity of Natural Forest to Quercus L.
   栎属天然林的遗传结构和遗传多样性研究。
2. Good results were achieved in projects for reforesting formerly cultivated land and protecting natural forests.
   退耕还林和天然林保护工程建设取得成效。