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1. Oxford American Dictionary

   perturb

   • IPA[pərˈtərb]

   美式

   • v.
     make (someone) anxious or unsettled；subject (a system, moving object, or process) to an influence tending to alter its normal or regular state or path

   • verb: perturb, 3rd person present: perturbs, gerund or present participle: perturbing, past tense: perturbed, past participle: perturbed

2. • 釋義

   v.

   動詞

   • 1. make (someone) anxious or unsettled they were perturbed by her capricious behavior they were perturbed that the bank had begun switching some of its problem loans
   • 2. technical subject (a system, moving object, or process) to an influence tending to alter its normal or regular state or path nuclear weapons could be used to perturb the orbit of an asteroid