1. 動詞
   不及物動詞:
   動搖
   遊移不定
   徬徨, 猶豫
   躊躇
   搖擺, 波動
   vacillate over ...(事):
   在...上猶豫不決
   在...上拿不定主意
   在...上捉拿不定
   

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   同義字詞
   balance,dither,falter,halt,hang back,hesitate,scruple,shilly-shally,stagger,teeter,waver,wobble,wabble
   

例句

1. Do you vacillate ?
2. Halder continued to vacillate .
3. Watkins continued to vacillate .
4. The desire maybe violent or it may vacillate .
5. I seem to vacillate from year to year, between rainiers and bings.
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