3 sentences

1. 山上的林木葱郁，景色优美。

   shān​shàng de lín​mù cōng yù, jǐng​sè yōu​měi.

   The trees on the mountain are lush and the scenery is beautiful.

   Source: Dong Chinese Dictionary

2. 这片山区覆盖着茂密的林木。

   zhè piàn shān​qū fù​gài zhe mào​mì de lín​mù.

   This mountain area is covered with dense forests.

   Source: Dong Chinese Dictionary

3. 山上林木极丰，到处都是绿荫。

   shān​shàng lín​mù jí fēng, dào​chù dōu shì lǜ​yīn.

   The mountain is densely forested, with shade everywhere.

   Source: Dong Chinese Dictionary