[] ( memos) ( ˌmemoˈrandum, formal ) an official note from one person to another or others in the same organization备忘录◆In a memo to employees, she explained the need to cut costs.在给员工的备忘录中，她解释了降低成本的必要性。⨁a company / an internal / a staff memo公司／内部／员工备忘录⨁to circulate / send / write a memo传阅／发送／撰写备忘录