“彻夜不眠”常见的英文表达有 “stay up all night” 或 “sleepless throughout the night” 。
stay up all night 是一个常用的短语,直接表达了整夜未睡的状态。例如:I stayed up all night to finish the project.(我为了完成这个项目彻夜不眠。 )
sleepless throughout the night 则更强调整夜都处于失眠、无法入睡的状态,稍显正式。例如:He was sleepless throughout the night due to anxiety.(由于焦虑,他彻夜不眠。 )