3 sentences

1. 让我们一起保护地球吧。

   ràng wǒ​men yī​qǐ bǎo​hù dì​qiú ba.

   Let's protect the earth together.

   Source: CCMatrix

2. 保护地球很重要！

   bǎo​hù dì​qiú hěn zhòng​yào!

   It’s important to protect the Earth!

   Source: CCMatrix

3. 他们保护地球的努力使我们所有人受益。

   tā​men bǎo​hù dì​qiú de nǔ lì shǐ wǒ​men suǒ​yǒu​rén shòu yì.

   Their efforts to protect the Earth benefit us all.

   Source: CCMatrix