adv.不必要的，不需要地，不必要地

She spent needlessly on expensive clothes when she could have bought perfectly good ones for less.
她本可以花更少的钱买到同样好的衣服，但她却无谓地购买了昂贵的衣物。
His anger was needlessly provoked by his colleague's insensitive comment.
他的同事的不敏感评论无谓地激起了他的愤怒。
The project could have been completed in half the time if they hadn't wasted effort needlessly.
如果他们没有无谓地浪费精力，这个项目本可以在一半的时间内完成。
He needlessly complicated the task by introducing unnecessary steps.
他通过引入不必要的步骤，无谓地使任务变得复杂。
The boss criticized her for being late, even though it was due to unforeseen circumstances beyond her control - a needlessly harsh reaction.
老板批评她迟到，尽管这是由于她无法控制的意外情况造成的——这是一个无谓的严厉反应。
The meeting dragged on for hours, with many participants discussing topics that were irrelevant and needlessly prolonging the discussion.
会议拖了几个小时，许多参与者讨论了无关且无谓地延长了讨论的话题。
The athlete injured himself needlessly during training by attempting a risky move he had not practiced enough.
这位运动员在训练中无谓地受伤，因为他尝试了一个没有充分练习的危险动作。
The customer complained needlessly about the service, when in fact it was exceptional and exceeded their expectations.
这位顾客无谓地抱怨服务质量，实际上服务非常出色，超出了他们的期望。
They needlessly duplicated efforts by assigning the same task to two different teams.
他们无谓地重复了努力，将同一个任务分配给了两个不同的团队。
The teacher assigned an excessive amount of homework, needlessly burdening the students with extra work.
老师布置了大量的作业，无谓地给学生增加了额外的负担。