相关单词同义词valid, available, effective, virtual, telling, 近义词 effective 有效的, effectual 有效果的, efficient 效率高的, practical 明智的, energetic 精力旺盛的, fruitful 多产的, successful 成功的, useful 有用的, worthwhile 值得(做)的, valuable 贵重的反义词inefficacious, 无效力的临近词efficacy, effete, efficaciously, efficaciousness, efficacious charm, efficacious remedy, efficacious device, efficacious running, efficacious teaching, efficacious ingredient, Efficacious Disinfeitant, efficacious against fever相似词efferent, effervesce, effervescent, effete, efficacy, efficiency, efficiency apartment, efficiency room, 返回 efficacious