今年秋天，亚马逊将出版122本各类型的图书，印刷版和电子版的都有。

Amazon will publish 122 books this fall in an array of genres, in both physical and e-book form.

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元数据允许rss阅读器了解诸如内容类型(文本还是多媒体)、出版日期之类的信息。

This metadata allows an RSS reader to understand such things as the type of content (text versus multimedia), the date of publication, and so forth.

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根据你要出版的书的类型有不同的模板可以使用，你可以按照自己觉得适宜的方法进行裁剪。

There are different templates you can use based on the type of book you are trying to publish, and you can tailor it the way you see fit.

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