Rìfùyīrì de chóngfù gōngzuò ràng tā gǎndào yànjuàn.
The repetitive work day in and day out made her feel bored.
Tips
usage
日复一日 emphasizes monotonous repetition over a long period. Often used with 地 as an adverb. Compare with 年复一年 (year after year) for even longer timeframes.