与书相关的习惯表达用语

 

know someone or something like a book

如果仔细研读一本书的话就可以做到对它了如指掌吧，所以像了解一本书那样了解某人或某事就是说"对某人或某事知道得一清二楚"。
例句：We've been married now for thirty years - long enough to know my wife like a book. I can tell what she is thinking about before she knows it herself. 我们已经结婚三十年了，我对我的妻子非常了解。有的时候她自己还不清楚自己在想什么，我就已经知道了。（这样了解妻子的丈夫真好！）

来自:和谐英语学习网-口语频道