Criticism and argument were again at their height, while Upton, as Edison's duellist, was kept busy replying to private and public challenges of the fact. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
He waylays the smaller boys to punch their unprotected heads, and calls challenges after me in the open streets. 查尔斯·狄更斯.大卫·科波菲尔.
Those are great challenges for us to decide. 赫伯特·乔治·威尔斯.世界史纲.
There were some sallies and minor successes, and Antony was loud with challenges to Octavian to decide the matter by personal combat. 赫伯特·乔治·威尔斯.世界史纲.
Whatever they undertake is important, and challenges our attention. 戴维·休谟.人性论.