作家用英语怎么说

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I would assume you are asking the question on how to say "writer" in English.

In English, a "writer" can refer to someone who writes books, articles, poems, etc. So, the term "writer" would be appropriate.

If you want to express it in a different way, a “novelist” is someone who writes long-form fiction, whereas a “journalist” writes news stories and articles for newspapers, magazines, and websites. Other types of writers could be referred to as “authors,” “poets,” “screenwriters,” “playwrights,” etc.