Immigrant tales have always been popular themes in fiction...

移民故事一直是小说中常见的主题。

Diana is a writer of historical fiction.

黛安娜是历史小说作家。

The truth or fiction of this story has never been truly determined.

这个故事一直以来真伪莫辨。

The idea that the United States could harmoniously accommodate all was a fiction.

认为美国可以接纳所有的人，使之和谐相处是一个幻想。