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
- Philosophy is a closed book to me.
我对哲学一窍不通。 - I'm afraid physic will always be a closed book to me.
恐怕我对物理窍不通。 - He closed the book, yawned, and went to bed.
他合上书，打了个哈欠，然后上床。 - Nick closed his book and put it down.
尼克把书合上后放下。 - Slowly he closed the book.
他慢慢合上书。 - Sarah closed the book and laid it aside.
萨拉合上书，把它放在了一边。 - The man's early life is a closed book.
那人的早年生活是个不可告人的谜。 - Economics was a closed book to him.
他对经济学一窍不通。 - Nuclear physics is a closed book to me.
核物理学是我完全不懂的一门学科。 - All examinations are closed book and closed notes.
测验中均禁止看书或笔记。