impulse
/ˈɪmpʌls/
n.
一句话记住
冲动;一时的强烈念头;冲力;推动力
释义与例句
n.
冲动;一时的强烈念头
a sudden strong wish to do something without thinking about the results
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She bought the dress on impulse, without checking the price.
她一时冲动买下那条裙子,连价格都没看。
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He had a sudden impulse to phone his old teacher.
他突然很想给以前的老师打个电话。
展开其余 1 条例句
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Don't act on impulse; think it over first.
别凭冲动行事,先好好想想。
n.
冲力;推动力
a force that starts something moving or makes progress happen
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The impulse from the kick sent the ball rolling.
踢出的冲力使球滚了起来。
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Her encouragement gave him the impulse to try again.
她的鼓励给了他再试一次的动力。
展开其余 1 条例句
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The news gave a fresh impulse to public interest in science.
这则消息进一步激发了公众对科学的兴趣。
词源与构词
记忆钩子
记 on impulse(一时冲动,也可说 on an impulse);resist the impulse to do(压住做某事的冲动);形容词‘冲动的’是 impulsive。
词族与关联词
同根词(同一个词根长出来的词)
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compel 强迫;迫使The court compelled the company to release the documents. 法院强制该公司公开这些文件。
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compulsory 强制的;必修的;义务的Attendance at the safety briefing is compulsory. 必须参加安全说明会。
词族(同一词根派生出的不同词性或形式)
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impulsive (人、行为)易冲动的形容词,如 an impulsive decision(冲动的决定)。
易混词(形近或义近,注意区别)
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on impulse 一时冲动(短语)on impulse 和 on an impulse 都地道:on impulse 更常见,on an impulse 强调‘某一次冲动’,如 On an impulse, she opened the letter。不能说 on the impulse 或 with impulse(×)。另外 impulse 是名词,‘冲动的’要用 impulsive:an impulsive decision ✓,an impulse decision(×)。I bought this hat on impulse and never wear it. 我一时冲动买了这顶帽子,却从来没戴过。
常见搭配
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on impulse 一时冲动I bought this hat on impulse and never wear it. 我一时冲动买了这顶帽子,却从来没戴过。
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an impulse to do something 做……的冲动He resisted the impulse to shout back. 他压住了想回喊的冲动。
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act on impulse 凭冲动行事Teenagers often act on impulse rather than reason. 青少年常常凭冲动而不是理性行事。