基本解释adj.無傚的；無用的同根派生futilely adv. 無益地，無傚地，無用地futileness n. 無益，無傚，無用futilely相关词英汉例句用作形容詞 (adj.)用作表語: S+be+～Their efforts to revive him were futile.他們對他搶救無傚。futilely更多例句