音標(biāo)發(fā)音英式音標(biāo) [??m.p?ls]美式音標(biāo) [??m?p?ls]國際音標(biāo) ['imp?ls]英式發(fā)音 美式發(fā)音 基本解釋n.沖動；心血來潮；神經(jīng)沖動；[物]沖量；[電]脈沖vt.推動詞源解說 15世紀(jì)初期進(jìn)入英語，直接源自拉丁語的impulsus，意爲(wèi)推動，沖動。詞根記憶im(使…) + puls(推) + e→推動，敺使im(使) + puls(敺動) + e→推動im(使…) + puls(推) + e→沖動im(在內(nèi)) + puls(推) + e→在內(nèi)推→動力im(使…) + puls(推) + e→推動→沖動同根派生adj性質(zhì)的同根詞impulsive：沖動的；受感情敺使的；任性的。adv性質(zhì)的同根詞impulsively：有推動力地。n性質(zhì)的同根詞impulsiveness：沖動。impulsion：沖動；沖擊；原動力。impulse相關(guān)詞用法辨析n. (名詞)impulse用作名詞,意思是“沖動,突然的想法”,後麪常接動詞不定式作其定語,但不可接動名詞。 impulse作“一時的想法,突然的想法”解時,是可數(shù)名詞,可接動詞不定式作表語。 impulse使用方法impulse詳細(xì)辨析英漢例句用作名詞 (n.)He felt an irresistible impulse to rush into the room.他有一種難以抗拒的沖動想沖進(jìn)房間。impulse更多例句詞組短語用作名詞 (n.)動詞+～feel an impulse 情不自禁想follow an impulse 憑一時沖動give an impulse 促進(jìn)receive an impulse 受到刺激形容詞+～blind impulse 盲目的沖動fresh impulse 新的刺激impulse更多詞組英英字典劍橋英英字典(WISH) a sudden strong wish to do something(SIGNAL) a short electrical, radio, or light signal that carries information or instructions between the parts of a system(REASON) something that is the driving force behind or reason for something else柯林斯英英字典 An impulse is a sudden desire to do something. An impulse is a short electrical signal that is sent along a wire or nerve or through the air, usually as one of a series. An impulse buy or impulse purchase is something that you decide to buy when you see it, although you had not planned to buy it. If you do something on impulse, you suddenly decide to do it, without planning it. impulse劍橋字典impulse柯林斯字典專業(yè)釋義電子、通信與自動控制技術(shù)沖量脈沖沖激物理學(xué)沖量機(jī)械工程沖量沖擊脈沖心理學(xué)沖動毉葯科學(xué)沖動生物學(xué)脈沖沖動沖動;搏動;脈沖計算機(jī)科學(xué)技術(shù)脈沖水利工程沖量航空、航天科學(xué)技術(shù)沖量