夙夜匪懈 sù yè fěi xiè

DEFINITIONS

  1. to work from morning to night (idiom)

CHARACTERS

夙 sù early in morning, dawn; previous
夜 yè
HSK 5
night, dark; in night; by night
匪 fěi bandits, robbers, gangsters
懈 xiè idle, relaxed, remiss