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

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

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