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TOEFL IELTS BNC: 5362 COCA: 4695
impulsenounuk/ˈɪm.pʌls/ us/ˈɪm.pʌls/

impulse noun WISH

C2 [ C + to infinitive ] a sudden strong wish to do something冲动，突然的强烈欲望

I had this sudden impulse to shout out "Nonsense!" in the middle of her speech.在她发言时我突然想大喊“一派胡言！”。
on (an) impulse

C2 because you suddenly want to, although you haven't planned to一时兴起，心血来潮

"I didn't know you were looking for some new shoes." "Oh, I wasn't - I just bought them on impulse."“我不知道你想要买双新鞋。”“噢，不是的——我只是一时冲动才买的。”

impulse noun SIGNAL

[ C ] a short electrical, radio, or light signal that carries information or instructions between the parts of a system脉冲

an electrical/nerve impulse电脉冲／神经冲动

impulse noun REASON

[ C usually singular ] formal something that is the driving force behind or reason for something else动机；动力；刺激

a creative/commercial impulse创作冲动／商业动机
TOEFL IELTS BNC: 5362 COCA: 4695
impulse

noun¹

 1sudden strong wish突然產生的強烈願望ADJECTIVE | VERB + IMPULSE | IMPULSE + NOUN | PREPOSITION ADJECTIVE➤strong強烈的衝動➤irresistible無法抵抗的衝動➤first, initial, original第一個念頭；最初的衝動◇My first impulse was to run away.我的第一個念頭就是逃跑。➤sudden突然的衝動➤human人類的基本衝動➤basic基本衝動➤instinctual, natural本能的／自然的衝動➤repressed被壓抑的衝動➤conflicting, contradictory, contrary矛盾的衝動；相反的衝動➤aggressive, murderous, violent挑釁的／殺人的／暴力衝動➤suicidal自殺衝動➤destructive破壞衝動➤creative創作衝動➤sexual性衝動VERB + IMPULSE➤feel, have感到衝動；有衝動◇She felt a sudden impulse to look to her left.她突然有種想往左看的衝動。➤be subject to易於衝動◇We are all subject to aggressive impulses.我們都有攻擊他人的衝動。➤be driven by受衝動驅使➤check, control, deny, fight, resist, restrain, stifle, suppress克制衝動；控制衝動；抑制衝動◇He fought down an impulse to scream.他壓制住想要尖叫的衝動。➤give in to, obey, yield to屈從於衝動◇She gave in to an impulse and took the money.她忍不住拿了那筆錢。➤act on, follow衝動行事◇Acting on impulse, he picked up the keys and slipped them into his pocket.他一時衝動，撿起鑰匙偷偷塞進了自己的口袋。IMPULSE + NOUN➤buy, purchase一時衝動購買的物品◇The little black designer dress had been an impulse buy.這條名牌黑色小裙子是一時心血來潮買的。➤item (especially NAmE) 供顧客臨時起意購買的商品◇Supermarkets sell candy as impulse items at the checkout counter.超市在收款櫃枱擺放糖果，供顧客臨時起意購買。➤buying衝動性購物➤buyer衝動型購物者➤control衝動控制PREPOSITION➤on (an) impulse因為衝動◇Some people will buy a pet on impulse without any idea of what is involved.有些人會因一時衝動買只寵物，而根本不去想這意味着什麼。◇On an impulse, I went in and bought a box of chocolates.我一時衝動，走進去買了一盒巧克力。➤impulse towards/toward對⋯的衝動◇basic impulses towards / toward things such as food and drink對食品、飲料等東西的基本衝動
impulse

noun²

 2movement of energy衝力ADJECTIVE | VERB + IMPULSE ADJECTIVE➤electrical, nerve, neural電脈衝；神經衝動VERB + IMPULSE➤generate產生脈衝◇A neuron generates an electrical impulse.神經元產生電脈衝。➤send, transmit發送／傳送脈衝◇Nerve impulses are transmitted to the brain.神經脈衝被傳送至大腦。➤convert sth into, transform sth into把⋯轉換成脈衝◇Radio waves are converted into electrical impulses.無線電波被轉換成電脈衝。
impulse

noun³

 3sth that causes sb/sth to do sth推動力ADJECTIVE | IMPULSE + VERB | PREPOSITION ADJECTIVE➤democratic, political, religious民主／政治／宗教推動力IMPULSE + VERB➤lead (sb/sth) to sth, prompt sb/sth (to do sth)動力促使⋯（做某事）；動力促成（⋯）◇the impulse that prompted economic change促使經濟變革的推動力PREPOSITION➤impulse behind⋯背後的推動力◇the impulse behind a concept概念背後的推動力➤impulse for對⋯的推動力◇the impulse for social reform社會改革的推動力➤impulse towards/toward朝向⋯的推動力◇the political impulses towards / toward joining a trade union促使加入工會的政治動力
TOEFL IELTS BNC: 5362 COCA: 4695
impulse noun
⇨ desire
TOEFL IELTS BNC: 5362 COCA: 4695

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