impulse
沖動,一時的念頭,突然地欲望
an impulse to do sth 指突然想做某事
Anna felt a sudden impulse to play some music.
Anna 突然覺得想放點音樂。
control/resist an impulse 就是指控制沖動
He struggled to resist the impulse to laugh.
他努力抑制住想笑的沖動。
on impulse 就是指憑一時沖動
He saw them get into the car and on an impulse he followed them.
他看見他們鉆進汽車,一時沖動之下他跟了進去。
the creative impulse 創作欲望
當然也可以作形容詞,心血來潮的,一時沖動的
an impulse buy 沖動購物
脈沖,神經沖動