on impulse例句

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。