Impulse

(n.)

1. (a) sudden urge to act without thinking about the results

凭冲动行事（未顾及后果）；突如其来的念头

e.g. He felt an irresistible impulse to jump.

他突然有个无法抗拒的冲动，想跳下去。

e.g. check/curb/resist an impulse

抑制/约束/遏止冲动

(b) tendency to act in this way

好冲动行事

e.g. a man of impulse

易冲动的人

2. push or thrust; stimulus; impetus

推动；冲力；刺激；推动力

e.g. give an impulse to industrial expansion

促进工业的扩展

3. stimulating force in a nerve or an electric circuit that causes a reaction

神经冲动；电路脉冲

e.g. nerve impulses

神经冲动

4. (idm 习语) on impulse

suddenly and without previous thinking or planning

一时冲动

e.g. On impulse, I picked up the phone and rang my sister in Australia.

我一时心血来潮，拿起话筒就给在澳大利亚的妹妹打了个电话。

5. impulsing buying

buying goods on impulse

凭冲动购买货物

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