1.a closed book ?鮮為人知高深莫測的事；不熟悉的人或物

Skiing is a closed book to me.

我對滑雪是一竅不通。

His early life is a closed book.

他的早年生活是個不可告人的謎.

open book 與第一個習語相反，這個短語表示“眾所周知的事或毫無秘密的事”

They have no secrets. He is like an open book to her.

他們之間沒有秘密，他對她毫無秘密。

something by the book/go by the book ?按規(guī)矩做事，循規(guī)蹈矩地做事

There is nothing really wrong to go by the book.

一切照規(guī)章行事，沒有不對的地方。

She does everything by the book.

她做事循規(guī)蹈矩，小心謹慎。

someone like a book ?看透某人的想法

She couldn't tell a lie if she wanted to. You can always read her like a book.

她想說謊都不行。你總是可以輕易看透她。

I know what he'll probably do. I can read him like a book.

我知道他可能會干什么，我對他了如指掌。

His lie was nailed to the counter cause his mother read him like a book.

他的謊言被揭穿了，因為他媽媽太了解他了。