秋天去爬山是最舒服的。

Qiūtiān qù páshān shì zuì shūfu de.

Hiking is most comfortable in the fall.

我们星期天去爬山。

Wǒmen xīngqītiān qù páshān.

We are going hiking on Sunday.

我不喜欢爬山。

Wǒ bù xǐhuān páshān.

I don't like hiking.