相关单词近义词 nothing 没有什么, uselessness 无用, futility 无用, vanity 自负, feebleness 衰弱, ineffectualness 无效(不成功..., ineffectuality ineffectual的...反义词effectiveness, 有效性临近词ineffective, ineffective learners, Ineffective abortion, ineffective register, ineffective cleaning, ineffective conducts, ineffective decision, ineffective circling, ineffective training, ineffective stimulus, ineffective listener 返回 ineffectiveness