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
  1. how it got out is a mystery
  2. it remains one of nature's secrets
  Synonym:mysteryenigmasecret

双语例句

• She stopped reading and closed the book.
  她停止阅读，合上书。
• 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。
• Mathematics was a closed book to me all through school.
  在整个求学期间，我对数学一窍不通。
• It's no good talking to me about physics; it's a closed book to me.
  跟我谈物理等于白说，我对它一窍不通。
• Slowly he closed the book.
  他慢慢合上书。
• All examinations are closed book and closed notes.
  测验中均禁止看书或笔记。
• I'm afraid accountancy is a closed book to me.
  我恐怕对会计学一窍不通。
• Sarah closed the book and laid it aside.
  萨拉合上书，把它放在了一边。
• Politics is a closed book to me.
  政治对我一窍不通。
• The exams will be closed book unless otherwise indicated.
  如无明确指示，测验将闭卷进行。