1
be extraneous to sth
表示“与……无关”
These details are extraneous to the main argument.
这些细节与主要论点无关。
无关的；不相干的
先理解核心含义，再看它在真实句子里的用法。
无关的；不相干的
Not pertinent to the matter under consideration; irrelevant.
These details are extraneous to the main argument.
这些细节与主要论点无关。
不属于或不依赖于某物；在某物之外；外来的
Not belonging to, or dependent upon, a thing; without or beyond a thing; foreign.
与所考虑事项无关
not pertinent to the matter under consideration
非必要或非本质的
Not essential or intrinsic.
非必要的
not essential
The professor told us to remove any extraneous information from our essays.
教授让我们从文章中删除所有无关的信息。
AI contextual example
Please focus on the main issue and ignore extraneous details.
请专注于主要问题，忽略无关的细节。
AI contextual example
His argument was weakened by many extraneous points that didn't support his main idea.
他的论点被许多不支持其主旨的无关观点削弱了。
AI contextual example
an issue extraneous to the debate
一个与辩论无关的问题。
WordNet
表示“与……无关”
These details are extraneous to the main argument.
这些细节与主要论点无关。
作定语，修饰名词
Please remove any extraneous information from the report.
请删除报告中所有无关的信息。
Not this
Please delete all extraneous from the document.
Use this
Please delete all extraneous information from the document.
错误是误将形容词“extraneous”用作名词。英语中，“extraneous”是形容词，必须修饰名词，不能单独作宾语。修改后加上名词“information”，符合语法。
Not this
I have an extraneous ticket, do you want it?
Use this
I have an extra ticket, do you want it?
错误是混淆了“extraneous”和“extra”。“Extraneous”意为“无关的、非必要的”，而“extra”表示“额外的、多余的”。这里想表达多出一张票，应使用“extra”。“Extraneous”会暗示票是无关或不必要的，不合语境。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
无关紧要的细节
Please ignore extraneous details and focus on the main point.
请忽略无关紧要的细节，把注意力放在要点上。
外界杂音；无关噪音
The recording is clear and free of extraneous noise.
这段录音很清晰，没有外界杂音。
外来物质；杂质
The sample was checked for extraneous material before testing.
测试前对样本进行了外来物质检查。
无关因素
Researchers must control extraneous factors to get reliable results.
研究人员必须控制无关因素，才能得到可靠的结果。
无关变量
Failing to control extraneous variables can ruin an experiment.
未能控制无关变量可能会毁掉一项实验。
Use extraneous naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想单词开头 extra（额外）：额外多出的、从外来的东西就是 extraneous，与主题无关。
语域：formal 常见场景：academic writing、formal reports、technical documentation 该词通常用于正式或学术性书面语，表示“外来的、不相干的、非必要的”；多出现在论文、报告或说明中，日常口语中较少见。
常与介词to搭配，表示‘与…无关的’。
Dictionary facts from ECDICT, WIKTIONARY.