n.無(wú)用；無(wú)益；無(wú)價(jià)值

She finally perceived the futility of her protest. 她最終感到她的抵抗是無(wú)用的。

We see the futility of finger-pointing. 我們認(rèn)為指責(zé)毫無(wú)益處。

As soon as he had felt these regrets,he realized their futility. 一有這種后悔的感覺(jué),他馬上認(rèn)識(shí)到后悔是無(wú)益的。

He well knew the futility of trying to contend against witches. 他十分清楚和巫婆斗沒(méi)什么好處。

Accustomed as I am to public speaking, I know the futility of it. 我雖然習(xí)慣公開(kāi)演講，但我卻知道那是枉費(fèi)心機(jī)的。