futile的同根名词为futility,基本意思是“无用;徒劳;无价值”。
相关介绍:
例句:
It would be futile to protest.
抗议也无用。
It would be futile to argue with him.
跟他争辩是徒劳的.。
There is no point in continuing this futile fight!
持续这场无效的战斗没有意义!