author
单词辨析：
普通用词，含义较广，多指以写作为职业的作家，一般限于传统文学体裁（如小说、戏剧、诗歌、散文等）之范畴；也可指普通报刊文章、报道、论文、甚至广告文字的撰写者或写家。有时可用于含褒、贬之意的非正式说法。
a ghost/hack/prolific writer
一个捉刀人/雇佣文人/多产作家
Defoe was a famous English writer.
笛福是英国的著名作家。
She was the writer of the letter.
她就是写这封信的人。
This example shows that good writers always try to avoid ambiguity.
这个例子说明，会写文章的人总是尽量避免歧义。
较正式用词，常特指某一文章、著作等的作者；指作家时，其与writer 的显著区别就是并不强调是否以写作为职业，而只强调写作出版的事实。
He became an author quite late in life.
他晚年才成为作家。
If you know the author only, just look it up in the author catalogue.
如果你只知道著作人，那就查作者目录。
In his preface, the author set forth his reasons for writing the book.
作者在前言中阐明了他写该书的原因。
相关例句：
The author tells of a remarkable encounter with a group of South Vietnamese soldiers.
作者讲述了和一群南越士兵的奇遇。
This poem fully expresses the author's love for the ordinary people and hatred for the ruling class.
这首诗酣畅淋漓地抒发了作者对普通人民的爱和对统治阶级的恨。
The author's treatment of the subject is exhaustive.
该作者对这个问题的分析很透彻。
The author's style suggests a certain ambiguity in his moral view.
该作家的风格表明其道德观有点暧昧不明。
The author doesn't equate liberalism and conservatism
该作者没有将自由主义和保守主义相提并论。
The author lifted the paragraph from someone else's work.
这一段是作者从别人的作品中抄来的。