音标发音英式音标 [ˈnaɪn.fəʊld]美式音标 [ˈnaɪn.foʊld]英式发音 美式发音 基本解释adj.九倍的；九重的adv.九倍地；九重地同根派生 英汉例句用作副词 (adv.)My investment has increased ninefold.我的投资增长了九倍。英英字典剑桥英英字典 nine times as much or as many by nine times