It is always futile to try to hold back the progress of history.(要想阻止历史潮流是徒劳的。)
To require them to use English is futile.(硬要他们使用英语纯属徒劳。)
My appeal proved futile.(我的呼吁白费了。)
Therefore any attempt at a universal tool set also proves futile.(因此试图建立一套通用工具集的任何尝试都被证明是无效的。)
While the efforts are certainly not futile, the results of such bans will likely only start to be seen by generations down the line, bettering the world for the future.(虽然这些努力肯定不是徒劳的，但这种禁令的结果很可能只会在以后的几代人身上开始显现，从而改善未来的世界。)
This is heroic but probably futile.(此举有着英雄气概，但或许徒劳无功。)
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。)
Work hard even while those around you say it's futile.(努力工作，甚至是你周围的人都说是徒劳。)
They are a futile attempt to keep from missing out.(企图阻止错过是徒劳无益的。)
When it comes to chocolate, resistance is futile.(遇到巧克力时，抵抗是无效的。)
