[with obj.]drive, push, or cause to move in a particular direction, typically forwards 推进,推 the boat is propelled by using a very long paddle. 这条小船是靠长桨推进的。 [as adj., in combination -propelled]a rocket-propelled grenade launcher. 火箭推进的枪榴弹发射筒。 ■[with obj. and adverbial of direction](figurative)spur or drive into a particular situation (喻)推动,刺激,驱策 fear propelled her out of her stillness. 恐惧打破了她的平静。
语源
late Middle English (in the sense 'expel, drive out'): from Latin propellere, from pro- 'forward' + pellere 'to drive'