Oneibi奥奈比onen.一；一个；一体adj.一个的；某一个的；唯一的；同一的pron.任何人；某人One who keeps a journal.记日志者记日志、日记的人one hundred and sixty five(=165) 一百六十五One bird can herald spring一只鸟能鸣报春天的来临one-way clutch mechanism单向离合机构one's paternal grandmotherone-order critical speed一阶临界One-One was racehorse.一一是匹赛马。One-dimensional material一维材料one sided spectral density单边频谱密度one station service center一站式服务中心

1. He'll come to realize it one day.
   他总有一天会懂得这一点。
2. I'm sure that new idea will pay dividends some day.
   我相信那个新观念总有一天会显出它的好处的。