1
be a policewoman
policewoman 是可数名词，表示单数身份时常说 a policewoman。
Her aunt is a policewoman.
她姑姑是一名女警。
女警
先理解核心含义，再看它在真实句子里的用法。
女警
a female police officer
Her aunt is a policewoman.
她姑姑是一名女警。
女警察。
A female police officer.
女警察
a woman policeman
The policewoman helped the lost child find his parents.
那位女警帮助迷路的孩子找到了父母。
A policewoman was directing traffic at the busy intersection.
一名女警正在繁忙的十字路口指挥交通。
Several policewomen received awards for their bravery last year.
去年几位女警因勇敢而获奖。
policewoman 是可数名词，表示单数身份时常说 a policewoman。
Her aunt is a policewoman.
她姑姑是一名女警。
work as 后接职业名词，表示“从事某职业”，单数时通常加 a/an。
She worked as a policewoman in London.
她曾在伦敦当女警。
policewoman 的复数是不规则变化 policewomen，注意不是 policewomans。
Policewomen who patrol this area are friendly.
在这一带巡逻的女警都很友善。
Not this
Two policewoman came to the house.
Use this
Two policewomen came to the house.
policewoman 的复数形式是 policewomen，而不是 policewoman。词尾的 -woman 在复数时变为 -women，所以与 two 搭配必须用复数 policewomen。
Not this
She is policewoman.
Use this
She is a policewoman.
policewoman 是可数名词单数，前面需要加冠词 a。中文没有冠词，学习者容易漏掉 a；加上 a 后句子语法才完整。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
卧底女警
The undercover policewoman was assigned to the drug case.
那名卧底女警被指派侦办毒品案件。
休班女警
An off-duty policewoman witnessed the robbery and called 911.
一名休班女警目睹抢劫并拨打了911。
女警制服
She hung her policewoman's uniform in the closet.
她把女警制服挂在衣柜里。
街头巡逻的女警
The policewoman on the beat greeted local shop owners.
街头巡逻的女警向当地店主打招呼。
Use policewoman naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记法：police（警察）+ woman（女人）组合成女警；复数policewomen把man变成men。
语域：neutral 常见场景：新闻报道、日常对话、正式文书 该词为中性称谓，通常用于正式或半正式场合，日常口语中也较常见，但在非正式语境下有时更倾向于使用 police officer 等性别中立表达。
以上带 -woman 的单词（woman, businesswoman, saleswoman, spokeswoman, chairwoman）都以 /wʊmən/ 结尾，与 policewoman 同韵。注意 human 拼写与 woman 相似，但读作 /ˈhjuːmən/，并不押韵。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.