前言

That book has a preface, not a foreword.

那本书有序文, 没有前言。

The preface is complete in itself.

这前言本身就是完整。

He gave a rather disjointed account of his experience in the jungle.

"在谈到他在热带丛林历时,他话前言不对后语。"

The introduction is mainly about the definition of eponym, and emphasizing its development and synchrony with language.

前言要是祖词定义，阐述祖词发展和存在现状，并强调了祖词始终与语言发展共时。