Daily Chinese Idiom Guessing Game
Day after day; repeatedly over time, emphasizing monotony or persistence.
复再，又。过了一天又一天。比喻日子久，时间长。也形容光阴白白地过去。
《后汉书·光武帝纪》天下重器，常恐不任，日复一日，安敢远期十岁乎？”
He goes to the same office, does the same tasks, day after day.