lost cause

音標(biāo)發(fā)音

And I'm going to stay right here and fight for this lost cause.
我會(huì)留在這，為已經(jīng)遺失的目標(biāo)奮斗。
Presumably the companies working together on International Data Privacy Day don't believe that privacy online is a lost cause.
也許在“國(guó)際數(shù)據(jù)隱私日”上參與合作的公司并不相信網(wǎng)絡(luò)隱私保護(hù)已經(jīng)失敗。
Various explanations have been offered for why Saif would give up the high-flying life to become a warrior for his father’s lost cause.
人們對(duì)賽義夫放棄光明追隨他父親去捍衛(wèi)已逝的事業(yè)給出了各種各樣的解釋。

If that's not a novelist's description of what a lost cause is I've never read one.
這就是一個(gè)小說(shuō)家所描述的失敗的代價(jià),我從未讀到過(guò)更貼切的說(shuō)法了
耶魯公開(kāi)課 - 美國(guó)內(nèi)戰(zhàn)與重建課程節(jié)選
And you can get lost in it 'cause there's so much stuff.
你會(huì)迷路的，因?yàn)槔锩鏂|西太多了。
無(wú)論去幾次也不會(huì)膩 - SpeakingMax英語(yǔ)口語(yǔ)達(dá)人
Her answer was this and it's got something to do with how a lost cause took hold too but she said, "Southerners love a good tale.
她是這么回答的,同時(shí)也解釋了為何南方人始終無(wú)法釋?xiě)?她說(shuō),"南方人鐘愛(ài)精彩的故事
耶魯公開(kāi)課 - 美國(guó)內(nèi)戰(zhàn)與重建課程節(jié)選

Another apparently lost cause, immigration reform, is unpopular with conservatives, but is supported by many businesspeople.
ECONOMIST: American politics after health reform

If you refer to something or someone as a lost cause, you mean that people's attempts to change or influence them have no chance of succeeding.