a futile effort

常见例句

A futile effort, too: Beijing won the games, and some would say the argument.
有人說：“北京贏得了奧運會（比賽games，又譯遊戯）”，這麽說也衹是無稽之談。
Last year it proposed tax incentives for companies to turn temps into regular employees—a futile effort when profits are scarce and jobs being slashed.
去年日本政府提出通過優惠公司企業稅鼓勵它們將臨時員工轉爲“普通”雇員——在利潤少的可憐的情況下企業必將裁員，此擧可爲無用功。
Affirmative won't, stationmaster people an end that sees you, although do not come out your T, your promotion also is make a futile effort !
肯定不會，站長們一眼就看出你的目的了，即使不把你T出來，你的推廣也是徒勞無功啊！

Cambara waits for him to push the door shut, which he does with a squeak, and she watches him as he turns the wobbly handle a couple of times in a futile effort to secure it, notwithstanding its state of malfunction.
NPR: Somalia's Farah: Humanizing a Broken Place
At this point, I recalled a long-ago futile effort to unclog my junk e-mail account.
FORBES: No E-mail About Your Borders' Shopping History Being Sold? (Or, How Privacy Protection Measures Can Backfire)
But the drive for sanctions has been a frustrating and some say futile effort.
NPR: U.S. Intelligence Report Complicates Iran Debate