| 词汇 | perturbation | 
| 释义 | perturbation  noun uk/ˌpɜː.təˈbeɪ.ʃən/ us/ˌpɝː.t̬ɚˈbeɪ.ʃən/   (WORRY)    [ U ] formal担心;烦恼  worry   (CHANGE)    [ C or U ] physics specialized摄动;扰动  a small change in the regular movement of an object  Perturbations in the orbit of the planet Uranus led to the discovery of Neptune in 1846. 天王星轨道的摄动使人们于1846年发现了海王星。  | 
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