你知道嗎？book也是有習語的
1.a closed book 鮮爲人知高深莫測的事；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“衆所周知的事或毫無祕密的事”
They have no secrets. He is like an open book to her.
他們之間沒有祕密，他對她毫無祕密。
something by the book/go by the book 按規矩做事，循規蹈矩地做事
There is nothing really wrong to go by the book.
一切照規章行事，沒有不對的地方。
She does everything by the book.
她做事循規蹈矩，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.
我知道他可能會幹什麼，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，因爲他媽媽太瞭解他了。
