1.  official letter
2.  official document
3.  missive

• 1. 公函: Official Letters | an official letter | official correspondence | missive
• 2. 或公函: Business Letter or Official Correspondence
• 3. 行政公函: official letter

更多释义

• 1.她今天早晨收到了几封公函。
  She received several official letters this morning.
  dict.yoduao.com
• 2.她收到了一封解释性的公函。
  She received an official letter of explanation.
  dict.yoduao.com
• 3.没说，太太。信是从城里寄来的，只是一封公函。
  No, ma 'am. It came from town, and is merely a letter of business.
  dict.yoduao.com

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