勒口文：出版社或作者撰写的短文，介绍作者或作广告式的推荐。它通常印在书本护封的勒口内。
Blurb: Short note by the publisher or author describing and recommending a book and introducing the author. It is usually printed on the jacket flaps.
出版社或作者撰写的短文，介绍作者或作广告式的推荐。它通常印在书本护封的勒口内。
Short note by the publisher or author describing and recommending a book and introducing the author. It is usually printed on the jacket flaps.
勒口文：出版社或作者撰写的短文，介绍作者或作广告式的推荐。
Blurb: Short note by the publisher or author describing and recommending a book and introducing the author.
勒口文：出版社或作者撰写的短文，介绍作者或作广告式的推荐。
Blurb: Short note by the publisher or author describing and recommending a book and introducing the author.
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