adj.无效的
n.无效

The new policy was considered noneffective in reducing traffic congestion.
这项新政策被认为对于缓解交通拥堵无效。
The medicine showed noneffective results in treating the rare disease.
这种药物在治疗罕见疾病方面显示无效。
Despite numerous attempts, their marketing strategy proved to be noneffective.
尽管尝试多次，他们的营销策略证明是无效的。
The teacher's efforts to engage the students were noneffective; they remained disinterested.
老师试图吸引学生注意力的努力无效，学生们仍然不感兴趣。
The security measures implemented at the airport were deemed noneffective after several incidents.
在发生几起事件后，机场实施的安全措施被认为是无效的。
His study habits, unfortunately, have been noneffective in improving his grades.
不幸的是，他的学习习惯并没有有效提高他的成绩。
The noneffective communication within the team led to misunderstandings and project delays.
团队内部无效的沟通导致了误解和项目延期。
The old machinery was noneffective and inefficient, leading to increased production costs.
旧机器既无效又低效，导致生产成本增加。
The noneffective protest did little to change the government's policy on environmental protection.
无效的抗议对改变政府的环保政策几乎没有影响。
Her attempts to discipline her child with threats were noneffective; he continued misbehaving.
她试图通过威胁来管教孩子，但这些努力无效，孩子继续淘气。