2 sentences

1. 这家非营利性社团致力于保护当地的生态环境。

   zhè jiā fēi yíng​lì​xìng shè​tuán zhì​lì yú bǎo​hù dāng​dì de shēng​tài huán​jìng.

   This non-profit organization is dedicated to protecting the local ecological environment.

   Source: Dong Chinese Dictionary

2. 这片林场经过几十年的经营，生态环境得到了显著改善。

   zhè piàn lín​chǎng jīng​guò jǐ​shí nián de jīng​yíng, shēng​tài huán​jìng dé​dào le xiǎn​zhù gǎi​shàn.

   After decades of management, the ecological environment of this forest farm has improved significantly.

   Source: Dong Chinese Dictionary