Their costly and futile attempt to subjugate the Afghans lasted just 10 years.

他们想征服阿富汗人的意图耗费大量金钱而且无效，只维持了十年的时间。

《柯林斯英汉双解大词典》

He brought his arm up in a futile attempt to ward off the blow.

他出于挡住这一击的无谓企图抬起了他的胳膊。

《柯林斯英汉双解大词典》

They are a futile attempt to keep from missing out.

企图阻止错过是徒劳无益的。

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It tells you that any attempt to try to specify, to localize the position of an electron in such a system is futile.

这说明你试着任何尝试关于，使一个电子在这样一个系统中,确定其明确的位置是没有意义的。

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They still offer too many models in a futile attempt to be all things to all consumers.

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Smith, the NBA's top sixth man, scored 19 points, most coming in a futile attempt to rally his team late.

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But eventually they may go up as workers make a futile attempt to maintain their standard of living with dollars that are steadily losing value.

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