adj.不需要的;不必要的;无用的;多余的;
英文例句/中文翻译:
Many soldiers died needlessly.
许多战士白白地牺牲了。
We need to bring to an end these needless deaths.
我们必须终止这些无谓的死亡。
The problem, needless to say, is the cost involved.
不用说,问题是所涉及的费用。