silvan造句

1、The crucial factor that silvan ecosystem degrades is forestry development intensity.
森林生态系统退化的要害因素是林业开发强度。

2、The environment be pregnant with here is worn substantial silvan natural resources.
这里的自然环境孕育着丰富的森林资源。

3、The silvan panorama of large area is OK express in detail from inside a chart.
大面积的森林全貌可以从一份图表中详尽地表示出来。