1
a [bed] with a tester
此义指四柱床上方的平顶华盖，不是“测试员”；with a tester 是常见的后置定语。
The old four-poster bed with a tester was the centrepiece of the guest room.
那张带天盖的旧四柱床是客房里的中心摆设。
天盖；华盖
先理解核心含义，再看它在真实句子里的用法。
天盖；华盖
a flat canopy, especially one over a four-poster bed
The old four-poster bed with a tester was the centrepiece of the guest room.
那张带天盖的旧四柱床是客房里的中心摆设。
尤指四柱床的顶盖。
床上的罩篷。
A canopy over a bed.
主持测试的人。
A person who administers a test.
旧时法国银币。
An old French silver coin.
悬垂于他物之上的东西；尤指讲道坛上方的罩篷或音板。
Something that overhangs something else; especially a canopy or soundboard over a pulpit.
The old tester above the bed was embroidered with silk flowers.
床上方的旧天盖用丝绸花朵绣饰。
Dust had gathered on the wooden tester of the four-poster bed.
四柱床的木制天盖上积了灰尘。
She admired the carved details of the tester from the staircase.
她从楼梯上欣赏天盖上雕刻的细节。
此义指四柱床上方的平顶华盖，不是“测试员”；with a tester 是常见的后置定语。
The old four-poster bed with a tester was the centrepiece of the guest room.
那张带天盖的旧四柱床是客房里的中心摆设。
tester 在这个义项下是可数名词，复数形式为 testers；over 表示“在……正上方”。
A silk tester over the bed was a traditional decoration in the palace.
床上方挂着一张丝绸天盖，是宫殿里的一种传统装饰。
Not this
The testers must answer all the questions.
Use this
The test takers must answer all the questions.
tester 指执行测试的人（如测试工程师、试验员），不指参加考试的人；‘考生/受试者’应说 test taker。这里把施事者和受事者弄反了。
Not this
Please tester this function before we release it.
Use this
Please test this function before we release it.
tester 是名词，不能作谓语动词；表示‘测试’这个动作要用动词 test。把名词 tester 当动词用属于词性混淆。
Not this
We have a listening tester tomorrow.
Use this
We have a listening test tomorrow.
tester 不表示‘测验/考试’这件事；表示考试或测验要用名词 test。不能因为 tester 看起来像 test 就把它当作事件名词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
带华盖的床
The guest room contains a heavy tester bed from the Victorian era.
客房内有一张维多利亚时代的厚重华盖床。
雕花华盖
The carved tester was a fine example of Renaissance woodwork.
这个雕花华盖是文艺复兴时期木雕工艺的典范。
讲道坛华盖
The pulpit tester is one of the church's finest treasures.
讲道坛华盖是教堂最珍贵的宝物之一。
华盖框架
The tester frame was too damaged to support the canopy.
华盖框架损坏太严重，无法支撑顶篷。
Use tester naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
tester 读如 test+er，可联想：给床做“测试”的大顶盖，即四柱床上的华盖；别记成考试人。
语域：formal 常见场景：furniture descriptions、museum or antique labels、historical or literary writing 通常用于正式或书面语境，多出现在描述四柱床顶盖的场合；日常口语中较少使用。比较常见于家具、古董或历史文学类内容。
作“华盖”解时特指四柱床上方的平顶帐幔。
Dictionary facts from ECDICT, WIKTIONARY.