These two little words gave him a fresh impulse, and he bent his mind again to his task.

仅仅这两个字就给了他一种新的冲动，他又把心思放在了任务上。

youdao

There were trifles, too, little ornaments, beautiful tokens of a continual remembrance, that must have been wrought by delicate fingers, at the impulse of a fond heart.

还有一些小玩艺儿，一些小小的饰物，以及一些表示持续的怀念的精美的纪念品，想必是一颗爱心冲动之财，用一双纤手制作的。

youdao

With no definite intent, from no motive but the wayward impulse of a madman, Murlock sprang to the wall, with a little groping seized his loaded rifle, and without aim discharged it.

没有明确的目标，没有任何动机，而仅仅是出于一个疯子的任性冲动，摩洛克冲向墙边，摸索到已经上膛的来复枪，毫无目标的扫射。

youdao

With syncopation the impulse can come suddenly off the beat, and it gives it a little snap or jazzy aspect to the music.

在切分音里,冲动会突然打乱节拍,让音乐听起来突兀,奔放

耶鲁公开课 - 聆听音乐课程节选

She did make up the bed and tidy her own little messes in the kitchen or the bathroom, but in general the impulse to take on any wholesale sweep of housecleaning was beyond her.

NEWYORKER: Free Radicals