1. 名詞
   衝動, 一時的念頭
   推動力, 衝力
   刺激
   an impulse to ...(動詞...):
   做...的衝動
   做...的念頭
   an impulse to ...(事):
   ...的推動力
   ...的衝力
   /以上可為可數與不可數名詞/
   

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   同義字詞
   boost,encouragement,goad,impetus,incentive,incitation,incitement,instigation,momentum,motivation,provocation,spur,stimulant,stimulus,yeast
   affection,affinity,aptitude,bent,bias,bone,devices,disposition,genius,habitude,inclination,leaning,partiality,penchant,predilection,predisposition,proclivity,propensity,tendency,turn
   

例句

1. I flew out here on impulse .
2. His first impulse had been right.
3. Trailcutter is a great impulse buy .
4. The Mortara's impulse was to suppress it.
5. Or had the impulse died or been rebuffed?
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