post

Compared meaning: a job or role (noun).

比较义项：职位、工作（名词）。

• post 本词

  Often a formally appointed job with specific duties, such as a diplomatic or military post; typically used with collocations like take up or resign from a post; more formal than position.

  常指经正式任命、带有具体职责的职位，例如外交或军事职位；常见搭配为“就任某职位”或“辞去某职位”；比 position 更正式。

  She left her teaching post to travel around the world.

  她辞去了教师职位，去环游世界了。

• office

  An official position of authority, especially one gained by election or government appointment; used in fixed phrases like hold office, run for office, leave office; not used for ordinary jobs.

  指经选举或政府任命获得的官方权力职位；常用于“担任公职”“竞选公职”“卸任公职”等固定搭配；不用于普通工作。

  She was elected to the office of mayor last year.

  她去年当选为市长。

• position

  The most neutral and general word for a job or rank in an organization; used freely in everyday speech and job advertisements with no special formality or fixed collocations.

  是最中性、最通用的说法，泛指机构中的工作或职级；可自由用于日常表达和招聘广告，没有特殊的正式度或固定搭配限制。

  The company advertised an open position in their marketing team.

  这家公司在市场部门发布了一个职位空缺的招聘广告。

• situation

  An old-fashioned or formal word, mainly British, for a job; today mostly limited to fixed expressions such as situations vacant in newspaper classified ads, rarely heard in ordinary speech.

  是较陈旧或正式的说法，主要见于英式英语，如今多局限于报纸分类广告中的“situations vacant”（职位空缺启事）等固定表达，日常口语中很少使用。

  The newspaper's classifieds listed several situations vacant that week.

  那份报纸的分类广告栏那周登出了几则职位空缺启事。

Post, office, position and situation all mean a job. Post is a formally appointed job with specific duties. Office is an official position gained by election, as in 'hold office'. Position is the most neutral, general word. Situation is old-fashioned, mainly British, now rare.

这四个词都表示“职位、工作”，但正式程度和使用场合不同：post 常指经正式任命、带有具体职责的职位；office 特指经选举或任命获得的官方权力职位；position 是最中性、最通用的说法；situation 是较陈旧的正式说法（主要见于英式英语），如今多见于固定短语。这里不比较 post 的“帖子、邮件”义、office 的“办公室”义、position 的“位置”义，以及 situation 的“情况、局面”义。

Compared meaning: to send something through the postal system (verb).

比较义项：邮寄，寄送（动词）。

• post 本词

  British English word for mailing letters or parcels through the postal system; typically used as 'post something to someone'; American English prefers 'mail' instead.

  英式英语中表示通过邮政系统寄送信件或包裹的常用词，常用“post something to someone”的结构；美式英语中不常用，美式英语更常用 mail。

  She posts her rent cheque to the landlord every month.

  她每个月都把房租支票寄给房东。

• send

  The most general and neutral of the three; not limited to physical mail, it covers emails, packages, or even people, and fits almost any register or method.

  三者中最通用、最中性的词，不限于实物邮寄，可用于电子邮件、包裹甚至派遣人员，几乎适用于任何语域或方式。

  Could you send me the report by email before the meeting starts?

  你能在会议开始前把报告用电子邮件发给我吗？

• mail

  American English word for mailing letters or parcels through the postal system; typically used as 'mail something to someone'; British English prefers 'post' instead.

  美式英语中表示通过邮政系统寄送信件或包裹的常用词，常用“mail something to someone”的结构；英式英语中通常用 post 表达同样的意思。

  I need to mail this letter before the post office closes.

  我得在邮局关门前把这封信寄出去。

All three mean sending by mail, but usage differs. Post is British English; mail is American English, for letters or parcels. Send is the most general word, covering mail, email, or people. Post's 'publish online' sense and send's 'dispatch a person' sense are not compared.

这三个词在这里都表示“寄送”，但适用的地域和范围不同：post 是英式英语常用词，mail 是美式英语常用词，两者通常只指通过邮政系统寄送实物（信件、包裹）；send 是三者中最通用、最中性的词，既可以指邮寄，也可以指电子发送或派遣人员，适用范围更广。这里不比较 post 表示“发布（社交媒体帖子）”或“张贴（公告）”的意思，也不比较 send 表示“派遣（人）”的意思。