不管是学习还是工作，我们的每一天生活都离不开书，但是关于书的这些用法你都说对了吗？
1. a book about
描述书的类别
I like books about food.
我喜欢美食类书籍。
There is a book about sports.
有本关于体育的书。
2. a book of
描述书的内容构成
It's a book of interviews with artists.
这是一本艺术家访谈录。
同理，用a book of essays表示论文集选，用a book of poems表示诗集。
3. by the book
严格按照规章办事、墨守成规
He does everything by the book.
他是一个墨守成规的人。
They play it by the book - their book not mine.
他们按规矩办事，只不过，不按我的规矩来。
4. an open book
易看穿的、一目了然的
Her life is an open book.
她的生活毫无秘密可言。
补充：an open book exam可不是一目了然的测验
而是大家最爱的开卷考试哦！
5. a closed book
完全不了解的、搞不懂的
Chemistry is a closed book to me.
我对化学一窍不通。
Even to his closest friends, Rick was always a closed book.
哪怕是最亲密的朋友，也认为瑞克不好接触。
