The purpose of the book is to provide a complete guide to the university.

本书旨在全面介绍这所大学。

《牛津词典》

The main purpose of the advertisement is to attract more book buyers.

广告的主要目的是吸引更多的购书者。

youdao

To me, it depends on the purpose of the book.

对我来说，这要取决于读书的目的。

youdao

So in this context, the river of oblivion serves an obvious purpose in the context we have here in Book Two.

故在这部分文本中，遗忘之河便是为了遗忘而存在的,在第二册书正是这样体现的。

耶鲁公开课 - 弥尔顿课程节选

Knowing what the framers of the Constitution believed upholds the theme and purpose of my book.

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Rodman, known as much for his wacky looks and lifestyle off the court as his considerable success on it, said the purpose of the book is simple.

WSJ: The Worm Turns: Rodman writes book for children

So, it could be that the main purpose of the book is to help business people become more conscious so that as they become more conscious of the things that they sort of do unconsciously, they can defend business better, and they can have businesses that are actually more successful as well.

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