Word: 夜以继日 (yèyǐjìrì) Traditional: 夜以繼日 夜以继日 dictionary entry yèyǐjìrì night and day (idiom) Full dictionary entry for 夜以继日 Example sentences using 夜以继日 2 sentences, showing page 1 of 1. 夜以继日地干活，你不累吗？ Yèyǐjìrì de gànhuó, nǐ bú lèi ma? Working day and night like this, aren't you tired? 我夜以继日地读书。 Wǒ yèyǐjìrì de dúshū. I studied around the clock.