impetus是什么意思 n. 动力, 推动力, 动量[医] 冲动, 动能, 起始(病) n a force that moves something alongn 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...