memorandum on / about sth
The director issued a memorandum on the new policy.
主管发布了一份关于新政策的备忘录。
备忘录；便笺
商务备忘录；外交备忘录；（年度出版物中的）纪念页；用作提醒的简短便条。；书面提议或提醒
a short written note or reminder
用作提醒的简短便条。
A short note serving as a reminder.
书面提议或提醒
a written proposal or reminder
书面商务通讯。
A written business communication.
简短的外交通讯。
A brief diplomatic communication.
年度出版物中纪念去年去世者的一页。
A page in an annual publication honoring the memory of a person who died during the past year.
The manager sent a memorandum about the new office policy.
经理发了一份关于新办公室政策的备忘录。
用法提示：此处“备忘录”为名词，指书面通知或提醒。
Both parties signed a memorandum of understanding to cooperate on the project.
双方签署了一份谅解备忘录，以合作开展该项目。
用法提示：此处“备忘录”指正式文件，常用于协议或意向书。
I found an old memorandum in the file cabinet describing the meeting arrangements.
我在文件柜里发现了一份描述会议安排的老备忘录。
用法提示：此处“备忘录”指记录事项的书面文件。
The director issued a memorandum on the new policy.
主管发布了一份关于新政策的备忘录。
He sent a memorandum to all department heads.
他给所有部门主管发了一份备忘录。
注意复数形式为memoranda。
I received a memorandum from the CEO this morning.
今天早上我收到一封来自CEO的备忘录。
memo是memorandum的缩写，常用于口语和非正式书面语，正式场合建议用全称。
note比memorandum更随意，可指个人或非正式记录，而memorandum多用于正式或商务场合。
reminder强调提醒功能，而memorandum侧重书面记录和正式传达。用于非正式语境更自然。
communiqué比memorandum更正式，专指外交或政府公告，一般不用于内部商业备忘。
bulletin常用于面向公众的简短通知，而memorandum通常是组织内部交流。
grammar · medium
易错句子We have received several memorandums today.
正确表达We have received several memoranda today.
memorandum 的复数形式是 memoranda（拉丁语来源），而不是加 -s 的 memos 形式。
grammar · medium
易错句子Please sign this memorandom.
正确表达Please sign this memorandum.
拼写错误：memorandum 的正确拼写是 m-e-m-o-r-a-n-d-u-m，中间没有多余的 o。
memorandum 是写给自己的备忘或正式提议，agenda 是会议要讨论的事项列表
memorandum 是提醒或建议，minutes 是会议讨论和决定的正式记录
签署备忘录
The two companies signed a memorandum of understanding.
两家公司签署了一份谅解备忘录。
起草备忘录
She drafted a memorandum outlining the new policy.
她起草了一份概述新政策的备忘录。
谅解备忘录
They signed a memorandum of understanding to cooperate on research.
他们签署了一份谅解备忘录以合作进行研究。
内部备忘录
An internal memorandum was circulated to all staff.
一份内部备忘录已分发给所有员工。
机密备忘录
The confidential memorandum was marked 'for your eyes only'.
这份机密备忘录上标有‘仅供参阅’。
发送备忘录
He sent a memorandum to the department heads.
他向各部门主管发送了一份备忘录。
root
suffix
与备忘录同为会议或正式场合常用的书面文件
备忘录与会议记录都是正式记录书面内容的形式
备忘录与议定书均用于正式外交或商业沟通
备忘录和简报都是传递信息的简洁书面形式
备忘录常与记录待办事项的清单相关联
谅解备忘录
The two companies signed a memorandum of understanding to explore collaboration opportunities.
这两家公司签署了一份谅解备忘录，以探索合作机会。
Dictionary facts from ECDICT, WIKTIONARY.