"原本"是一个常用的词，可以表示"本来、开始的时候"，也可以指一本书最早的版本。

"原本" is a common word that can mean "originally, at the beginning," or refer to the earliest version of a book.

我们常说"原本以为"，意思是开始的想法后来变了。

We often say "原本以为," meaning the initial thought later changed.