短语词组短語rotor vacillation 轉子搖擺vacillation cycle 遊移周期vacillation phenomena 遊移現象vacillation õ 躊躇pointer vacillation 指針擺動climatic vacillation 氣候擺動vacillation factors 波動因素Vacillation change 振蕩變化pertinacity vacillation 頑固 返回 vacillation