1
a mag about [topic]
常用搭配，表示杂志的主题。
I bought a mag about photography.
我买了一本摄影杂志。
髓鞘相关糖蛋白基因
先理解核心含义，再看它在真实句子里的用法。
髓鞘相关糖蛋白基因
A gene that encodes myelin-associated glycoprotein.
I bought a mag about photography.
我买了一本摄影杂志。
编码髓鞘相关糖蛋白的基因
A gene which encodes for myelin associated glycoprotein
I picked up a fashion mag at the airport.
我在机场买了一本时尚杂志。
She reads several mags every month to stay updated.
她每个月看几本杂志来了解最新动态。
The latest tech mag has a review of that new phone.
最新的科技杂志上有那款新手机的评测。
常用搭配，表示杂志的主题。
I bought a mag about photography.
我买了一本摄影杂志。
She read a mag on the train.
她在火车上看了一本杂志。
表示位置或出处。
I saw an interesting article in the mag.
我在那本杂志里看到一篇有趣的文章。
Not this
I have two mag.
Use this
I have two mags.
mag 是可数名词，表示多于一个时，必须加复数词尾 -s。
Not this
I read mag every day.
Use this
I read a mag every day.
mag 作为可数单数名词，需要不定冠词 a 或其它限定词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
mag基因（髓鞘相关糖蛋白基因）
Scientists are studying the mag gene to understand its role in the nervous system.
科学家正在研究mag基因，以了解它在神经系统中的作用。
mag基因表达
We measured mag expression in brain tissue.
我们测量了脑组织中的mag基因表达。
mag基因突变
A mag mutation has been associated with abnormal myelination.
一种mag基因突变与髓鞘形成异常有关。
mag基因敲除
Researchers created mag knockout mice to study myelination.
研究人员培育了mag基因敲除小鼠来研究髓鞘形成。
Use mag naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 MAG 联想成‘髓鞘相关糖蛋白’的英文首字母：MAG 像给神经电线裹上绝缘胶皮，帮助记住基因功能。
语域：formal 常见场景：Molecular biology、Genetics、Medical research 作为“编码髓鞘相关糖蛋白的基因”这一专业义项，多出现在分子生物学、遗传学或医学研究文献中，正式程度较高。使用时通常作为基因名称或缩写处理。
可数名词，常指杂志的缩略形式
Dictionary facts from ECDICT, WIKTIONARY.