impetus是什么意思音标:英 [ˈɪmpɪtəs]美 [ˈɪmpɪtəs]

n. 动力, 推动力, 动量
[医] 冲动, 动能, 起始(病)

n a force that moves something along
n the act of applying force suddenly

impetus的用法和例句：

1.against their own individual impetuses to dissociate.

尽管他们本身可能不想产生联系

2.In the wake of the war, there was a great impetus to grow and provide more food.

随着战争而来的 是种植并产出更多食物的巨大动力

3.Ellen's counterclockwise experiment was the impetus for a whole range of psychological studies exploring the influence of mind over body.

艾伦的时光倒流实验成为 所有认为思想可以影响身体的 心理研究的动力