Phrase
closed book
完全未知的事物；不了解的人或事
Someone or something about which you know nothing; a complete mystery.
- 1.
A person or thing that cannot be easily understood; someone or something incomprehensible or puzzling.
难以理解的人或事物；不可理解或令人困惑的人或事物
已了结的事情；已成定局的事；难以理解的人或事物；不可理解或令人困惑的人或事物；一无所知的东西; 已结束的事(计划、行动等)
In use
Quantum physics is a closed book to me.
The new software was a closed book for many older employees.
These ancient languages are closed books to most people.
be a closed book to sb
表示某人对某事物完全不了解。
This subject is a closed book to me.
这个科目对我来说是一无所知的东西。
be a closed book
表示某事已经完结，不再讨论。
That project is now a closed book.
那个项目现在已经结束了。
become a closed book
强调从某种状态转变为了结或未知。
After the divorce, the past became a closed book.
离婚后，过去的事就成了封存的事情。
Common mistakes
This subject is a close book to me.This subject is a closed book to me.
误用动词原形'close'代替过去分词'closed'作形容词；'closed book'是固定短语，'closed'不可替换为原形。
This subject is a closed book for me.This subject is a closed book to me.
介词搭配错误；'a closed book'后接介词'to'表示'对……而言'，而非'for'。
Connections
Confusing words
- open book
- 一目了然的事 · 两者均为名词短语，但意思相反："open book"表示容易理解的事物，而"closed book"表示难以理解的事物。
- closed case
- 已了结的案子 · "closed case"特指已经解决的案件或问题，而"closed book"可以指任何已结束的事情或全然不懂的领域。
- closed-minded
- 思想封闭的 · "closed-minded"是形容词，形容人不愿接受新想法；而"closed book"是名词短语，指事物本身难以理解或已结束。
Word family
- closed books
- plural
Learner notes
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.