秋天到了，树上的叶子都变黄了。

Qiūtiān dào le, shù shàng de yèzi dōu biàn huáng le.

Autumn has arrived, and the leaves on the trees have all turned yellow.

我最喜欢秋天，天气凉爽又舒服。

Wǒ zuì xǐhuan qiūtiān, tiānqì liángshuǎng yòu shūfu.

I like autumn the most; the weather is cool and comfortable.

秋天是收获的季节，水果特别多。

Qiūtiān shì shōuhuò de jìjié, shuǐguǒ tèbié duō.

Autumn is the harvest season, and there is especially a lot of fruit.