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perturbation in [sth]
There was a slight perturbation in the orbit of the planet.
行星轨道出现轻微摄动。
不安；忧虑；烦扰
先理解核心含义，再看它在真实句子里的用法。
不安；忧虑；烦扰
an unhappy and worried mental state
There was a slight perturbation in the orbit of the planet.
行星轨道出现轻微摄动。
不安；烦乱状态。
Agitation; the state of being perturbed.
不安,忧虑的精神状态
an unhappy and worried mental state
物理系统或更广泛的可定义系统(如生物或经济系统)中的微小变化。
A small change in a physical system, or more broadly any definable system (such as a biological or economic system).
(物理学)微扰,对系统的次要影响
(physics) a secondary influence on a system that causes it to deviate slightly
The unexpected news caused great perturbation in the quiet village.
这个意外的消息在宁静的村庄里引起了极大的不安。
AI contextual example
She tried to hide her perturbation when her name was called.
当叫到她的名字时，她试图掩饰自己的不安。
AI contextual example
He noticed the perturbation in her voice and asked what was wrong.
他注意到她声音里的不安，便问她怎么了。
AI contextual example
the term `distress' connotes some degree of perturbation and emotional upset
“痛苦”一词隐含着某种程度的烦乱和情绪不安。
WordNet
There was a slight perturbation in the orbit of the planet.
行星轨道出现轻微摄动。
perturbation 在此语境中为不可数名词。
The sudden change in policy caused considerable perturbation among the staff.
政策的突然变化在员工中引起了相当大的不安。
She viewed the new regulations with perturbation.
她不安地看待新规定。
Not this
The news perturbation me.
Use this
The news perturbs me.
“Perturbation”是名词，不能作谓语动词；应使用动词“perturb”。
Not this
I have a perturbation about the exam.
Use this
I am perturbed about the exam.
“Perturbation”不是个人情绪状态的常用表达，应使用形容词“perturbed”描述感受。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
微扰理论
Perturbation theory helps physicists approximate complex systems.
微扰理论帮助物理学家近似处理复杂系统。
轨道扰动；轨道摄动
Jupiter's gravity causes orbital perturbations in nearby asteroids.
木星的引力导致附近小行星的轨道扰动。
轻微扰动
A slight perturbation in the readings may indicate a problem.
读数中的轻微扰动可能表明存在问题。
情绪不安
She tried to hide her emotional perturbation during the meeting.
会议期间她试图掩饰自己的情绪不安。
环境扰动
Many species are sensitive to environmental perturbations.
许多物种对环境扰动很敏感。
磁扰动
Solar storms can create magnetic perturbations on Earth.
太阳风暴会在地球上产生磁扰动。
Use perturbation naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想动词 perturb（打扰、使不安），加 -ation 变名词；被人打扰那一刻的心情就是 perturbation（不安、扰动）。
语域：formal 常见场景：正式写作、文学作品、学术论文 该词比较正式，常见于书面语和学术文本。表示‘不安’时多用于心理或情感描写；表示‘微小变化或干扰’时多用于物理、经济等专业领域。日常口语中较少使用。
All six words rhyme with perturbation: their stressed vowel is /eɪ/ followed by /ʃən/. Beware lookalikes spelled with -tion that sound different, such as option /ˈɑːpʃən/ and notion /ˈnoʊʃən/—they do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.