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BNC: 7076 COCA: 7869

ineffective

adjective
/ˌɪnɪˈfektɪv/
/ˌɪnɪˈfektɪv/
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  1. not achieving what you want to achieve; not having any effect无效果的；不起作用的；不奏效的
    • The new drug was ineffective.新药不起作用。
    • ineffective management管理不善
    • ineffective in doing something The law proved ineffective in dealing with the problem.事实证明这条法规未能真正解决问题。
    opposite effective
    Extra Examples
    • These policies have proved ineffective.事实证明这些政策并不奏效。
    • These weapons are totally ineffective against tanks.这些武器在坦克面前根本不起作用。
    • chemicals that are very ineffective in killing weeds除草效果很差的化学品
    • High interest rates proved to be ineffective in reducing inflation.事实证明高利率并未有效降低通货膨胀。
    • It has been criticized as an unfair and ineffective system.这种体制被批不公、无效。
    • She was offered psychotherapy, but this proved ineffective.她接受了心理治疗，但这证明是无效的。
    • The evidence demonstrates that punishment is ineffective as a deterrent.证据表明惩罚作为一种威慑是无效的。
    • The exemption clause in the contract is rendered ineffective by the new law.新法律使合同中的免责条款变得无效。
    • The government continued with its much-publicized but largely ineffective policy of economic sanctions.政府继续推行其广为宣传但基本无效的经济制裁政策。
    Topics Change, cause and effectc1, Difficulty and failurec1
    Oxford Collocations Dictionaryverbs
    • be
    • prove
    • seem
    • …
    adverb
    • extremely
    • fairly
    • very
    • …
    preposition
    • against
    • in
    See full entry
    Word Originmid 17th cent.: from in- + effective.

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