Word: 彻夜 (chèyè) Traditional: 徹夜 彻夜 dictionary entry chèyè the whole night Full dictionary entry for 彻夜 Example sentences using 彻夜 2 sentences, showing page 1 of 1. 他彻夜不睡，一直在写报告。 Tā chèyè bú shuì, yìzhí zài xiě bàogào. He stayed up all night writing the report. 我弟弟会经常彻夜不睡。 Wǒ dìdi huì jīngcháng chèyè bú shuì. My brother will often sit up all night.