今天比昨天冷。

Jīntiān bǐ zuótiān lěng.

Today is colder than yesterday.

这本书比那本有意思。

Zhè běn shū bǐ nà běn yǒuyìsi.

This book is more interesting than that one.

学汉语比你想的容易。

Xué Hànyǔ bǐ nǐ xiǎng de róngyì.

Learning Chinese is easier than you think.