impetus
US /ˈɪm.pə.t̬əs/
UK /ˈɪm.pə.t̬əs/
1.
冲力, 推动力
the force or energy with which a body moves
:
•
The ball gathered impetus as it rolled down the hill.
球滚下山时获得了冲力。
•
The rocket gained impetus as it ascended.
火箭在上升时获得了冲力。
2.
动力, 推动力, 刺激
the force that makes something happen or happen more quickly
:
•
His speech gave new impetus to the reform movement.
他的演讲为改革运动注入了新的动力。
•
The discovery provided fresh impetus for scientific research.
这项发现为科学研究提供了新的动力。