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新东方-柯林斯雅思备考词典
impetus
英 [ˈɪmpɪtəs]
[NOUN]
1. [U 不可数名词] 推动力 , 促进因素
Something that gives a process impetus or an impetus makes it happen or progress more quickly.
近义词
双语例句
例：The impetus for change came from lawyers.
促进变革的动力来自于律师们。