Letting her friend borrow her car was an impulsive act that she immediately regretted.

让朋友借走她的车是她立刻就感到后悔的冲动行为。

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You feel a bit wild or impulsive and may act in an impulsive manner which could embarrass you later.

你感到有点狂野和冲动，但你冲动的行为过后会给你带来尴尬。

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One impulsive, off the cuff statement or act can significantly damage your career. 8ilence is golden, especially when you are angry, tired or at a company-sponsored social event.

一次冲动、莽撞的言行，就能对你的职业生涯造成非常严重的破坏。沉默是金，尤其是在生气、疲惫的时候，或是在公司发起的社交场合上。

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We understand that suicide can be an impulsive act and that alcoholism, substance abuse and access to lethal means can increase its likelihood.

CNN: Why more Americans are dying of suicide

If sharing music was a deliberate act back then, today it is becoming an impulsive one.

FORBES: Will Music On Facebook Make Us Flightier Listeners?