我们应该要好好保护森林。

Wǒmen yīnggāi yào hǎohāo bǎohù sēnlín.

We should preserve the forest.

森林大火已经持续一个多星期了。

Sēnlín dàhuǒ yǐjīng chíxù yí gè duō xīngqī le.

The forest fire has been going on for more than a week.

森林里的空气很清新。

Sēnlín lǐ de kōngqì hěn qīngxīn.

The air in the forest is very fresh.