impetus
impetus
noun
noun
- [mass noun]the force or energy with which a body moves
动力，原动力
hit the booster coil before the flywheel loses all its impetus.
在飞轮还没有失去所有动力前击打启动点火线圈。
■the force that makes something happen or happen more quickly
促进，推动，激励
the crisis of the 1860s provided the original impetus for the settlements.
19世纪60年代的危机给殖民提供了最初的推动力。
- mid 17th cent.: from Latin, assault, force', from impetere 'assail', from in- 'towards' + petere 'seek'
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