holy of holies /ˌhəʊlɪ əv ˈhəʊlɪz/

• 1.  

  N-SING（单数型名词） A holy of holies is a place that is so sacred that only particular people are allowed to enter; often used in informal English to refer humorously to a place where only a few special people can go. 圣之又圣之地

  例：

  ...the holy of holies in the Temple.

  ...该殿堂中只有特殊人物可以进入的至圣之地。