a closed book 高深莫测的事物

时间：2021-11-12 03:52:48

（单词翻译:单击）

A closed1 book
 
≠一本合上的书
 
=高深莫测的事物
 
联想记忆：把书合上，那就不知道里面的知识是什么，所以高深莫测。
 
例句：
 
I'm afraid accountancy is a closed book to me.
我恐怕对会计学一窍不通。

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1 closed GwPzIB     
adj.关闭的；封闭的
参考例句：
  • He closed his eyes.他闭上了眼睛。
  • He was out of work when the factory closed.他在工厂倒闭后失业了。

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