这本书的序言写得很感人。

Zhè běn shū de xùyán xiě de hěn gǎnrén.

The preface of this book is very touching.

这篇序言不仅概括了主要内容，还提出了几个重要问题。

Zhè piān xùyán bùjǐn gàikuò le zhǔyào nèiróng, hái tíchū le jǐ gè zhòngyào wèntí.

This preface not only summarizes the main content but also raises several important questions.