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
- Nuclear physics is a closed book to most of us.
我们大多数人对原子核物理学一窍不通。 - Politics is a closed book to me.
政治对我一窍不通。 - She stopped reading and closed the book.
她停止阅读，合上书。 - Even though she has lived in Beijing for several years, Chinese men are still a closed book to Cathie Watson.
即使已经在北京生活多年，凯蒂•沃森对于中国男士还是知之甚少。 - He closed the book, marking his page, and placed it on the table beside him.
他关闭了书，标示他的页，而且放它在他旁边的桌子上。 - Economics was a closed book to him.
他对经济学一窍不通。 - The man's early life is a closed book.
那人的早年生活是个不可告人的谜。 - Anne closed her book and stood up.
安尼合上书，站了起来。 - As far as she is concerned, her marriage is a closed book.
对她来说，她的婚姻已经彻底结束了。 - The exams will be closed book unless otherwise indicated.
如无明确指示，测验将闭卷进行。