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BNC: 7076 COCA: 7869
ineffectiveadjectiveuk/ˌɪn.ɪˈfek.tɪv/ us/ˌɪn.ɪˈfek.tɪv/

not producing the effects or results that are wanted不起作用的，无效果的，不奏效的

They made an ineffective attempt to get the rules changed.他们试图改变规则，但未成功。
The army has proved ineffective in protecting the civilian population.军队没有起到保护平民的作用。
BNC: 7076 COCA: 7869
ineffective

adjective

VERBS | ADVERB | PREPOSITION VERBS➤be, prove, seem無效；證明無效；似乎無效◇These policies have proved ineffective.事實證明這些政策並不奏效。➤become變得無效▸➤make sth, render sth使⋯不起作用；使⋯無效◇The contract was rendered ineffective by this careless wording.措辭不慎致使這份合同失效。ADVERB➤extremely, fairly, very, etc.效果極其／相當／非常不好▸➤highly效果極其不好▸➤completely, entirely, totally完全無效；絲毫不起作用➤largely在很大程度上無效➤politically政治上不起作用PREPOSITION➤against對⋯無效◇These weapons are totally ineffective against tanks.這些武器在坦克面前根本不起作用。➤in在⋯方面無效◇chemicals that are very ineffective in killing weeds除草效果很差的化學品
BNC: 7076 COCA: 7869
ineffective

adjective

ineffective ♦︎ inefficient ♦︎ unproductive ♦︎ counterproductive ♦︎ ineffectual ♦︎ self-defeatingThese words all describe sth that does not achieve what is wanted or intended, or sb/sth that does not achieve very much. 这些词均表示不起作用的、效果不佳的。PATTERNS AND COLLOCATIONS 句型和搭配◆ineffective / inefficient / counterproductive for sb / sth◆ineffective / ineffectual as sth◆ineffective / inefficient in / at doing sth◆to be ineffective / inefficient / counterproductive / self-defeating to do sth◆largely ineffective / unproductive / ineffectual / self-defeating◆rather ineffective / inefficient / ineffectual◆relatively ineffective / inefficient / unproductive◆entirely ineffective / unproductive / counterproductive■ ineffective not achieving what you want it to achieve; not having any effect 无效果的；不起作用的；不奏效的◆It has been criticized as an unfair and ineffective system.这种体制被批不公、无效。◆The missiles are totally ineffective against tanks.这些导弹根本对付不了坦克。◆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。OPP effective ⇨ successful 1 ▸ ineffectively

adverb

◆Why is this crime dealt with so ineffectively?对这起犯罪的处理为何如此不力？ OPP effectively ⇨ successful 1 ■ inefficient ˌɪnɪˈfɪʃnt not doing a job well and not making the best use of time, money, energy, etc. 效率低的；能力差的；浪费的◆The regime was both inefficient and corrupt.这个政权既无能又腐败。◆The boss thinks the new secretary is inefficient.老板认为新秘书不称职。◆This method of data storage is an inefficient use of memory.这种数据存储方法浪费内存。OPP efficient ⇨ efficient ▸ inefficiency

noun

 [uncountable, plural] ◆The measures encouraged inefficiency and waste.这些措施助长了低效率与浪费。◆inefficiencies in the system体制中的低效率现象 OPP efficiency ⇨ efficiency ▸ inefficiently

adverb

◆The firm was inefficiently run.该公司经营不善。 OPP efficiently ⇨ efficient ■ unproductive not producing or achieving very much; not producing good results 产能差的；效果不佳的；成效低的◆I've spent yet another unproductive day.我这一天又是什么事都没干成。◆We had a series of unproductive meetings.我们开的一连串会议都是事倍功半。OPP productive ⇨ productive ■ counterproductive [not usually before noun] having the opposite effect to the one intended 产生相反效果；事与愿违；适得其反◆Increases in taxation would be counterproductive.加税将会适得其反。◆It would be counterproductive to act hastily at this stage.在这个阶段仓促行事会得到反效果。■ ineffectual ˌɪnɪˈfektʃuəl (formal) (of a person) not achieving much; weak; (of an action) not achieving what you want it to achieve （人）无能的，软弱的；（行为）达不到目的的◆The president is seen as weak and ineffectual.总统被视为软弱无能。◆She made an ineffectual grab at the book.她去抓那本书，但没抓到。ⓘ Ineffectual is used especially when sb/sth does not achieve much because of weakness or lack of the necessary ability and is used especially about people and their attempts to do sth. * ineffectual尤用以表示人试图做某事，但因为虚弱或缺乏必要的能力而不成功。▸ ineffectually

adverb

◆He struggled ineffectually to get out from behind the wheel.他徒劳地挣扎着，想从方向盘后面爬出来。■ ˌself-deˈfeating causing more problems and difficulties instead of solving them; having the opposite effect to the one intended 弄巧成拙的；事与愿违的；适得其反的◆Paying children too much attention when they misbehave can be self-defeating.孩子有不良行为时，过度关注可能会适得其反。
BNC: 7076 COCA: 7869
ineffective
Not effective or useful and not working correctly: useless, ineffective, inefficient...
Not skilful or able: incompetent, incapable, awful...
Disadvantages: disadvantage, handicap, limitation...

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