| 词汇 | perturbation |
| 释义 | per·turb·ationBrE /ˌpɜːtəˈbeɪʃn/ NAmE /ˌpɜːrtərˈbeɪʃn/ noun [U ](formal ) the state of feeling anxious about sth that has happened 忧虑；不安；烦恼SYN alarm[C , U ](specialist ) a small change in the quality , behaviour or movement of sth 摄动；微扰；扰动；小变异◆ temperature perturbations 温度的些微变化 |
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