听声词典

effective

E 开头单词

音标发音

  • 英式音标 [ɪ'fektɪvɪˈfektɪv]
  • 美式音标 [əˈfek.tɪv]
  • 国际音标 [i'fektiv]
  • 英式发音
  • 美式发音

基本解释

  • adj. 有效的，起作用的；实际的，实在的；给人深刻印象

词源解说

  • 14世纪晚进入英语，直接源自法语的effectif；最初源自拉丁语的effectivus，意为生产的。

词根记忆

  • 来自effect(n.影响，效果)

同根派生

  • adv性质的同根词
    effectively：有效地，生效地；有力地；实际上。
    effectually：有效地；全然；实质上。
  • n性质的同根词
    effect：影响；效果；作用。
    effectiveness：效力。
    effector：[生理]效应器；[遗]效应物；操纵装置。
    effectivity：有效；功效。
  • vt性质的同根词
    effect：产生；达到目的。

用法辨析

    adj. (形容词)

  • effective强调产生实际效果的能力,无比较级和最高级。

英汉例句

    用作形容词 (adj.)

    用作定语: ～+ n.

  • These are effective measures.
    这些都是有效的措施。

    • 用作表语: S+be+～

  • The law became effective last month.
    这条法律于上个月生效。

    • S+be+～+ prep .-phrase

  • The medicine is effective against cancer.
    这药物治癌有效。

词组短语

    用作形容词 (adj.)

    ～+介词

  • be effective against 有抗…效力的
  • effective from 生效日期；自…起生效

    • 短语

  • effective range [电]有效范围;有效量限;测量范围
  • effective supply 有效供给；有效供应
  • effective frequency 有效频次;有效接触频次;有用频次
  • effective head [水利]有效水头;有效落差;净落差

英英字典

    剑桥英英字典

  • (SUCCESSFUL) successful or achieving the results that you want
  • (IN FACT) in fact, although not officially
  • (IN USE) If a law or rule becomes effective, it starts to be used.

    • 柯林斯英英字典

  • Something that is effective works well and produces the results that were intended.
  • effectively
  • Effective means having a particular role or result in practice, though not officially or in theory.
  • When something such as a law or an agreement becomes effective, it begins officially to apply or be valid.

专业释义

    经济学

  • 有效

    Option is an effective tool of risk management.
    期权是一种有效的风险管理工具。

    医药科学

  • 效果

    Conclusion: The Mongaolian medicine Naru-3 is more effective in traffic accident of spinal cord injury.
    结论：交通事故性脊髓损伤后手术及营养神经治疗并联合蒙药那如-3治疗效果好。

    计算机科学技术

  • 有效的

    Experimental results show that the approach is effective.
    实验结果表明该方法是有效的。

    法学

  • 有效

    Inquiry is very effective to factual disputes.
    调查针对事实争端非常有效。

  • 生效

    And the effective date of the crime should be based on the exact time that the judgment takes effect.
    在行为的起算时间上,应以法院裁判生效为准。

  • 效力

    In order to correct mistake in the effective judgment, the review procedure is carried on once more to the case tries.
    再审程序,是为了纠正已经发生法律效力裁判中的错误而对案件再次进行审理的程序。

  • 效益

    The fair value of criminal proceedings, effective value, the value of the order also requires it.
    刑事诉讼的公正价值、效益价值、秩序价值也要求对刑事被害人的权利保护。

    电子、通信与自动控制技术

  • 高效

    Numerical results proved that all the presented methods are effective and accurate.6.
    数值算例及其结果证明了算法是高效、精确的。

    交通运输工程

  • 高效

    The trend in transportation system is the development in effective and unisonous comprehensive transportation system which is just in the beginning progress in our country.
    发展协调高效的综合运输体系，是交通运输发展的必然趋势。

    管理学

  • 成效

    The emergence and development of the sense of social responsibility is the solid foundation of the effective critical spirit.
    社会责任感的出现和成熟是学校批判精神富有成效的基础。

  • 实效性

    The question of how to make the moral education more effective in the school is a widely discussed issue nowadays.
    学校德育实效性问题已经引起全社会的广泛关注。

    体育

  • 效果

    Endurance training reduces fat synthesis, and it is has a more effective function if combined with food-restriction.
    耐力训练降低了大鼠脂类的合成，结合限制饮食使这种趋势更明显，减肥效果更好。

    数学

  • 有效的

    • 生物学

  • 有效的50％effectiveconcentration50％有效浓度50％effectivedose50％有效剂量
  • 有效的

    • 地球科学

  • 有效硫