【夙夜匪懈】〖sù yè fi xiè〗[never to slacken morning or night; busy morning and night; never idle; nonstop from morning to night]

夙兴昧旦著诗典，

夜静更阑汉英翻。

匪夷所思贫病迫，

懈弛害怕稿难完。

形容日夜谨慎工作，勤奋不懈。Describe day night careful work, diligence unremitting.同：夙夜匪解。反：醉生梦死。