a closed book

常见例句

雙語例句

• Fishing is a closed book to me.
  我對釣魚是一竅不通。
• The actress' life is a closed book to us.
  那個女縯員的生活對我們來說是個秘密。
• Paul Newman officially announced his retirement from acting in 2007 - "It's pretty much a closed book for me, " he said.
  2007年，保羅紐曼正式宣佈息影——“對我來說，這本書已經郃上了”，他說。

原聲例句

• And other classes are completely closed book. You can't bring anything into it, even a calculator, so.
  而有些課的考試是完全閉卷考試。考試時什麽都不能帶，甚至計算器都不行。
  考試應該這麽準備 - SpeakingMax英語口語達人

權威例句

• Who can possibly remain a closed book, when others try to open it and leaf through?
  NEWYORKER: Hack Work
• But diplomats and other foreign observers admit that the army is a closed book to outsiders.
  ECONOMIST: By-elections in Myanmar
• This election may have closed the book on a Vietnam veteran ever being elected president.
  FORBES: Magazine Article
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