[N-VAR 可变名词]冲动；一时兴起的念头 An impulse is a sudden desire to do something.
[oft N to-inf]
Unable to resist the impulse, he glanced at the sea again...
他抑制不住冲动，又向海面瞥了一眼。
He still couldn't understand the impulse that had made him confide in Cassandra...
他仍然难以理解是什么样的冲动使他向卡桑德拉吐露了秘密。
Wade resisted an impulse to smile.
韦德强忍住想笑的冲动。
2
[N-COUNT 可数名词]脉冲 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.
3
[ADJ 形容词]一时兴起的；随兴的 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.
[ADJ n]
The curtains were an impulse buy.
窗帘是一时兴起买下的。
4
[PHRASE 短语]凭冲动；一时兴起 If you do something on impulse, you suddenly decide to do it, without planning it.
[PHR after v]
Sean's a fast thinker, and he acts on impulse...
肖恩是个思维敏捷、行事随兴的人。
After lunch she decided on impulse to take a bath.
午饭后她突然兴起，决定洗个澡。
Oxford
im·pulse/ˈɪmpʌls; NAmEˈɪmpʌls/noun1[countable , usually singular, uncountable ]impulse(to do sth) a sudden strong wish or need to do sth, without stopping to think about the results 冲动；心血来潮；一时的念头◆He had a sudden impulse to stand up and sing.他突然心血来潮，想站起来歌唱。◆I resisted the impulse to laugh.我强忍着没有笑出来。◆Her first impulse was to run away.她的第一个念头就是逃走。◆The door was open and on (an) impulseshe went inside. 门开着，她一时心血来潮就走了进去。◆He tends to act on impulse.他往往凭一时冲动行事。2[countable ]( technical 术语) a force or movement of energy that causes sth else to react 动力；冲力；冲量◆nerve/electrical impulses神经冲动；电路脉冲3[countable , usually singular, uncountable ]( formal) something that causes sb/sth to do sth or to develop and make progress 推动力；刺激◆to give an impulse to the struggling car industry给予挣扎中的汽车工业一点刺激impulseimpulsesim·pulse/ˈɪmpʌls; NAmEˈɪmpʌls/
LDC
impulseim‧pulse /ˈɪmpʌls/ ●○○ noun
Word Origin
Examples
Thesaurus
Collocations
1[countable, uncountable] a sudden strong desire to do something without thinking about whether it is a sensible thing to doSYN urgeimpulse to do something a sudden impulse to laugh Marge’s first impulse was to run. Gerry couldn’t resist the impulse to kiss her.on impulse On impulse, I picked up the phone and rang her. Most beginners buy plants on impulse and then hope for the best.impulse buying/shopping (=when you buy things that you had not planned to buy)2[countable] technical a short electrical signal that travels in one direction along a nerve or wire: The eye converts light signals to nerve impulses.3[countable] a reason or aim that causes a particular kind of activity or behaviour: It is the passions which provide the main impulse of music.COLLOCATIONSadjectivesstrong· He had a strong impulse to punch Stan in the face.irresistible (=very strong)· I felt an irresistible impulse to giggle.a sudden impulse· She felt a sudden impulse to play some music.somebody's first/initial impulse· Her first impulse was to turn and walk away.a natural impulse· My natural impulse was to shout for help.verbshave/feel an impulse to· Rosa had an impulse to tell Henry the truth.resist/control an impulse (=not do something, even though you have an impulse to do it)· Derek resisted the impulse to eat any more cake.act on an impulse (=do something because you have a sudden desire to do it)· Acting on an impulse, he decided to visit his sister.obey an impulse formal (also yield to an impulse literary) (=do something because you have a sudden very strong desire to do it)· Yielding to an impulse, she called him on her mobile phone.impulse + NOUNan impulse buy (=buying something without having planned it)· She admitted that the necklace had been an impulse buy.phrasesdo something on impulse (=do something without having planned it)· James bought her some flowers on impulse.
WDF
impulse
[ˈɪmpʌls]
CET4CET6TEM4考研GRETOEFLIELTS
n4739
5741
432
1597
1408
621
1683
NOUN6957
105905
Spoken:
41626443
impulses[1925]
冲动(86%)，推动(7%)，神经冲动(4%)，心血来潮(3%)
n.冲动；[电子] 脉冲；刺激；神经冲动；推动力
vt.推动
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