基本解釋n.無(wú)益；徒然；自負(fù)同根派生 vainness相關(guān)詞英漢例句It is vain to attempt to root out heresy by force. 試圖用暴力消除異端邪說(shuō)是徒勞的。I sought to persuade him, but in vain. 我試圖說(shuō)服他，但無(wú)效。I tried to make his peace with her, but in vain. 我試圖使他與她和好，但還是白搭。She is vain and foolish, and yet people like her. 她自負(fù)而愚蠢，然而人們喜歡她。I tried to console her, but in vain. 我試著去安慰她，但是無(wú)效。vainness更多例句