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be a schoolteacher
schoolteacher 指中小学教师，不用于大学教师。
She is a schoolteacher at a primary school.
她是一所小学的教师。
中小学教师；教师
先理解核心含义，再看它在真实句子里的用法。
中小学教师；教师
a teacher in a school below the college level
She is a schoolteacher at a primary school.
她是一所小学的教师。
通常指中小学教师，不指大学教师。
在学校任教的教师；学校教师
A teacher working in a school.
My aunt is a schoolteacher at a primary school in Hangzhou.
我姑姑是杭州一所小学的教师。
The schoolteachers at the local middle school often stay late to prepare lessons.
当地中学的教师经常留到很晚备课。
We asked a retired schoolteacher to tutor my brother in math.
我们请了一位退休教师给我弟弟辅导数学。
schoolteacher 指中小学教师，不用于大学教师。
She is a schoolteacher at a primary school.
她是一所小学的教师。
He works as a schoolteacher in a village school.
他在一所乡村学校当教师。
表示具体科目时可用 schoolteacher of + 科目。
She is a schoolteacher of history.
她是一位历史教师。
Not this
She is schoolteacher.
Use this
She is a schoolteacher.
schoolteacher 是可数名词单数，前面需要不定冠词 a；汉语没有冠词，所以学习者容易漏掉。
Not this
My uncle is a schoolteacher at Peking University.
Use this
My uncle is a teacher at Peking University.
schoolteacher 特指中小学（大学以下学校）的教师；在大学任教不能用 schoolteacher，要用 teacher 或 professor。汉语的“教师”可泛指，所以容易误用。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
退休教师
Her father, a retired schoolteacher, still helps children with their homework.
她父亲是一位退休教师，仍然辅导孩子们做作业。
教师的工资
A schoolteacher's salary is rarely enough to support a big family.
教师的工资很难养活一个大家庭。
当教师，以教师为业
She works as a schoolteacher in a small town.
她在一个小镇当教师。
合格的教师
You need to be a qualified schoolteacher to teach in most public schools.
在大多数公立学校任教，你需要是一名合格的教师。
乡村教师
The village schoolteacher taught all the children in one classroom.
这位乡村教师在一个教室里教所有孩子。
教师生涯
After a long career as a schoolteacher, he wrote a book about education.
在长期从事教师工作之后，他写了一本关于教育的书。
Use schoolteacher naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：school（学校）+ teacher（老师），合起来就是学校里的老师，特指中小学教师，区别于大学教授。
语域：neutral 常见场景：school environments、describing someone's occupation schoolteacher 通常指中小学教师，属于中性常用词，正式或日常场合都可以使用。
teacher, preacher, creature and feature all rhyme with the '-teacher' part of schoolteacher (/iːtʃə/). school matches the first syllable (/skuːl/). scholar looks similar to school but is pronounced /ˈskɒlə/, not /skuːl/.
Dictionary facts from ECDICT, WIKTIONARY.