closed book
英 [kləʊzd bʊk]
美 [kloʊzd bʊk]
完全不了解的人; 一无所知的事物; 谜
英英释义
noun
- something that baffles understanding and cannot be explained
- how it got out is a mystery
 - it remains one of nature's secrets
 
 
双语例句
- As far as I'm concerned the accident is a closed book; I just want to forget it.
就我而言,这事件已过去了,我只想忘掉它。 - The final is a closed book test, but you may bring a one-page outline to the exam to consult freely.
虽然期末考试不得翻书,但你可以携带一页的大纲前来应试。 - Nick closed his book and put it down.
尼克把书合上后放下。 - Nuclear physics is a closed book to me.
核物理学是我完全不懂的一门学科。 - The dense dark jungle, obviously a closed book to an outsider, is an open book to the aboriginals.
黑暗稠密的丛林,对外来者显然是神秘莫测的,但对土著来说却毫无神秘可言。 - He closed the book, yawned, and went to bed.
他合上书,打了个哈欠,然后上床。 - All examinations are closed book and closed notes.
测验中均禁止看书或笔记。 - The exams will be closed book unless otherwise indicated.
如无明确指示,测验将闭卷进行。 - For me, geology is a closed book.
对我来说地质学是一门我完全不懂的学科。 - If the court rejects the deal, much potentially useful information will remain, quite literally, a closed book.
如果法院拒绝了这份协议,那么确切的说那么多有用的知识仍然只是一本合着的书而已。 
