From now on, you’ll be on a journey between who you think you  are and who you can be. The key is to allow yourself to continue the journey in the ocean of the books.

我的疑问是：一般我看到的句子如果是在介词后接宾语从句的话，都是介词是谓语的一部分，可是这个句子明显是在句子中充当状语 between who you think you are and who you can be，想问这样也可以么？请给出相关例句及语法规则。

【答】在两者之间的表达是：between A and B。

A和B可以是名词，代词动名词或名词从句。所以说，between who you think you are and who you can be就是名词从句。

A= who you think you are （you think是插入语，可以省去）

B= who you can be

between who you are and who you can be：在你是什么样的人和可能是什么样的人之间。

【直译】从现在始，你将行走在你觉得自己是什么样的人和能成为什么样的人这段旅途中。关键是要让自己在书的海洋继续前行。