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adv.确实地，毋庸置疑地
1、unfoundedly───毫无根据的
2、undauntedly───不屈不挠地；无畏地；顽强地
3、undoubtful───不容置疑的
4、unboundedly───adv.无边际地；无限制地
5、undoubted───adj.无疑的；确实的
6、undoubtingly───毫无疑问
7、undoubtable───adj.毋庸置疑的
8、untroubledly───无忧无虑
9、undoubled───adj.不再对折的；展开的；不再握紧的；vt.使不再成双（undouble的过去分词）
1、Undoubtedly he was one of the key components of Brazil winning their unprecedented fifth World Cup title.───无庸质疑，他是巴西史无前例地夺得第五次世界杯冠军的关键因素之一。
2、Country music was undoubtedly one of the forerunners of rock and roll.───乡村音乐无疑是摇滚乐的先导之一。
3、And trying to buy Kosovo's support might be too expensive for China, since Taiwan will undoubtedly make generous aid offers.───而且收买科索沃的支持对北京而言代价过于昂贵，因为台北无疑会给出慷慨的援助建议。
4、Although some of these barriers were undoubtedly beneficial, they also hugely increased costs both for the bank and its borrowers.───尽管有些障碍无疑是有益的，但这样的做法却让银行与贷款人平添了巨额的成本。
5、Mozart's compositions are undoubtedly among the world's greatest.───莫扎特的作品无疑位列于世界上最伟大的作品之中。
6、Undoubtedly, political and economic factors have played their part.───毫无疑问，政治和经济因素起了作用。
7、Before long, many of these would undoubtedly end up in unscrupulous private and public collections of the affluent nations.───不久后，大量的文物毫无疑问的会落在富裕国家里一些不择手段的私人收藏家和收藏机构手里。
8、China's economic development is undoubtedly going to be the most important economic event for the next decade or two.───无疑，中国的经济发展将成为未来一二十年最为重要的经济事件。
9、Well in case you live under a rock, you undoubtedly heard that Apple came out with a new iPhone yesterday.───如果你还是活在石器时代，你肯定已经听说苹果发布了新iPhone。
1、Undoubtedly he did it.