impulseWiktionary 原文中文来自 ECDICTn.冲动，驱使，刺激，推动，冲力，建议，脉冲vt.推动演变路径（由近及远）英语借自 ←中古法语 impulser源自 ←拉丁语 impulsus原始词根原始印欧语 *pel-词源说明Borrowed from Middle French impulser, from Latin impulsus.释义（英文）名词 NounA thrust; a push; a sudden force that impels.A wish or urge, particularly a sudden one prompting action.(physics