[with obj.]drive, force, or urge (someone) to do something 驱使,迫使,催促 financial difficulties impelled him to desperate measures. 经济困难迫使他采取孤注一掷的措施。 [with obj. and infinitive]a lack of equality impelled the oppressed to fight. 不平等待遇驱使受压迫者起来斗争。 ■drive forward; propel 驱动,推进 vital energies impel him in unforeseen directions. 他旺盛的生命力不知会把他推向什么方向。
语源
late Middle English (in the sense 'propel'): from Latin impellere, from in- 'towards' + pellere 'to drive'