1
use a magnifier to do sth
use 后接工具名词，再接不定式表示目的。
She used a magnifier to read the tiny print.
她用放大镜阅读细小的文字。
放大镜
先理解核心含义，再看它在真实句子里的用法。
放大镜
a scientific instrument that magnifies an image
She used a magnifier to read the tiny print.
她用放大镜阅读细小的文字。
起放大作用的东西。
That which magnifies.
I used a magnifier to read the tiny print on the medicine bottle.
我用放大镜查看药瓶上的小字。
The jeweler inspected the diamond with a magnifier before setting it.
珠宝商在镶嵌前用放大镜检查了这颗钻石。
She keeps a magnifier on her desk to examine stamps and coins.
她桌上放着一个放大镜，用来查看邮票和硬币。
use 后接工具名词，再接不定式表示目的。
She used a magnifier to read the tiny print.
她用放大镜阅读细小的文字。
through 表示以放大镜作为观察媒介。
He looked at the stamp through a magnifier.
他透过放大镜看邮票。
for 后接名词或动名词，说明放大镜的用途。
This magnifier for coins is easy to carry.
这个用于观察硬币的放大镜便于携带。
Not this
You can magnifier the text to read it easily.
Use this
You can magnify the text to read it easily.
magnifier 是名词（放大镜），动词是 magnify。中文的"放大"可作名词和动词，但英语中词性不同，不能把 magnifier 当动词用。
Not this
The magnifier of this microscope is 400x.
Use this
The magnification of this microscope is 400x.
magnifier 指放大镜这个工具，magnification 指放大倍数或放大过程。表达倍数时应用 magnification，而不是 magnifier。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
手持放大镜
She used a hand magnifier to read the tiny print.
她用手持放大镜阅读细小的印刷文字。
带照明放大镜
The jeweler inspected the diamond with an illuminated magnifier.
珠宝商用带照明放大镜检查钻石。
使用放大镜
Use a magnifier to see the details on the stamp.
使用放大镜查看邮票上的细节。
在放大镜下
The engineer examined the circuit board under a magnifier.
工程师在放大镜下检查电路板。
电子放大镜
A digital magnifier can help people with low vision read books.
电子放大镜可以帮助视力低下的人读书。
Use magnifier naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆：magnify（放大）+ -er（工具）= 放大镜。联想“马格尼”用放大镜把蚂蚁看得像巨兽一样清楚。
语域：mixed 常见场景：日常用品、光学仪器说明、科技文献 该词在日常口语和正式书面语中都常见：口语里常指放大镜，科技或仪器说明中则指放大装置；通常不带强烈文体色彩。
Rhyming on /aɪə/: fire, higher, liar, buyer, flyer, and amplifier all share the same /aɪə/ ending as magnifier. Watch out for lookalikes with the 'magni-' spelling that do not rhyme, such as magnificent /mæɡˈnɪfɪsənt/, magnitude /ˈmæɡnɪtjuːd/, and magnet /ˈmæɡnɪt/.
Dictionary facts from ECDICT, WIKTIONARY.