on impulse是什么意思？

Sean's a fast thinker, and he acts on impulse.肖恩是个思维敏捷、行事随兴的人。After lunch she decided on impulse to take a bath.午饭后她突然兴起，决定洗个澡。Many people act on impulse without counting the cost.很多人不考虑后果就莽撞行事。...

on impulse的音标：on impulse的英式发音音标为：[ɔn 'impʌls]on impulse的美式发音音标为：[ɑn 'ɪmˌpʌls]...