| 单词 | ineffective |
| 例句 | ineffective adjective 1.•an ineffective scheme:unsuccessful, unproductive, fruitless, unprofitable, abortive, futile, purposeless, useless, worthless, ineffectual, inefficient, inefficacious, inadequate | feeble, inept, lame | archaic bootless. 2.•an ineffective president:ineffectual, inefficient, inefficacious, unsuccessful, powerless, impotent, lame-duck | inadequate, incompetent, incapable, unfit, inept, bungling, weak, poor | informal useless, hopeless. |
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