例句
同义词
词组
  • on impulse (或 on an impulse)
    suddenly and without forethought; impulsively 凭冲动,冲动地
英语四级真题
  • Because ConAgra felt the product would be an impulse purchase, it was important to make the item stand out in the freezer case.
    出自-2015年12月听力原文
  • The problem is that such an impulse is hard to sustain Across the country, many similar families were unable to maintain the initial boost in morale(士气).
    出自-2012年6月阅读原文
  • Many of them buy things on impulse.
    出自-2013年6月听力原文
柯林斯高阶英汉双解学习词典释义
英汉词典释义
英英词典释义
  • Noun
    1. an instinctive motive;
    "profound religious impulses"
    2. a sudden desire;
    "he bought it on an impulse"
    3. the electrical discharge that travels along a nerve fiber;
    "they demonstrated the transmission of impulses from the cortex to the hypothalamus"
    4. (electronics) a sharp transient wave in the normal electrical state (or a series of such transients);
    "the pulsations seemed to be coming from a star"
    5. the act of applying force suddenly;
    "the impulse knocked him over"
    6. an impelling force or strength;
    "the car's momentum carried it off the road"
行业词典
  • 体育: 冲量;
    力学: 冲量;
    医学: 推力,冲力,搏动;冲动:突然、不可控制的决定要行动的冲动;神经冲动;
    土木工程: 冲量;
    心理学: 冲动;
    水利: 冲量;作用在物体上的力使物体的动量在某一时段内发生变化的度量,其值等于力和其作用时间的乘积。;
    物理学: 冲量;
    电工: 冲击;
    自动化: 冲量;
    航天: 冲量;
    通信: 冲激;又称“冲击脉冲”。(1)一种持续期极短的信号。(2)电压(居多)或电流的一种无方向的短暂突发。;
    铁道: 脉冲;又称 :脉冲(pulse);