基本解釋adj.無效的;無用的同根派生futilely adv. 無益地,無效地,無用地futileness n. 無益,無效,無用futilely相關(guān)詞英漢例句用作形容詞 (adj.)用作表語: S+be+~Their efforts to revive him were futile.他們對(duì)他搶救無效。futilely更多例句