Read Edit View history 夜以继日 yèyǐjìrì HSK7 night and day Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 夜以继日/夜以繼日 · yèyǐjìrì · night and day 2026/03/04 夜以继日 / 夜以繼日 yèyǐjìrì night and day night and day; continuous strenuous effort 为了在截止日期前完成任务，他夜以继日地工作。 idiom created sense Mar 4, 2026, 02:25 AM