手稿是由专业作家编辑的。

The manuscript was edited by a professional writer.

他口述了他的回忆录给一位专业作家。

He dictated his memoirs to a professional writer.

湖南省作家协会专业作家。

He is a professional writer of Hunan Writers Association.

内容网站现在主要分成两大阵型：其一，保持专业作家编写的内容；其二，通过论坛形式，提供用户原创内容（UGC）功能。

But the core proposition for content sites appears to swing into one of the two camps, keeping professionally written content in dedicated areas or providing UGC elements through forums.