memorandum  
noun [ C ]  specialized uk/ˌmem.əˈræn.dəm/ us/ˌmem.əˈræn.dəm/  memoranda /-də/ memorandums
  (DOCUMENT)         
  business 报告
a short written report prepared specially for a person or group of people that contains information about a particular matter
  Michael Davis has prepared a memorandum outlining our need for an additional warehouse. 迈克尔•戴维斯准备了一份报告,概述了我们还需要一座仓库。 
  law 协议备忘录
an informal legal agreement
  The three countries have signed a memorandum pledging to work together. 这3个国家签署了一份协议备忘录,承诺会进行合作。 
   (MESSAGE)     
 formal备忘录;备忘便条(同 memo) 
a  memo