The following example sounds like an enjoyable activity -- reading someone like a book.

以下例子听起来像是一项令人愉快的活动——" reading someone like a book" 。

To read someone like a book means you are able to understand someone very clearly.

" 像读书一样去读一个人" 的意思是你能够很懂一个人。

It is easy to read someone like a book when they are an open book.

当一个人很率直的时候，你能很容易弄懂他/她。

Yet " to read someone like a book" means that you know the person very well -- and usually not in a good way.

然而，" to read someone like a book" 指的是你非常了解这个人，而且通常是以一种不好的方式。