夙興夜寐 sù xīng yè mèi

DEFINITIONS

  1. to rise early and sleep late (idiom); to work hard
  2. to study diligently
  3. to burn the candle at both ends

CHARACTERS

夙 sù early in morning, dawn; previous
興 xīng thrive, prosper, flourish
夜 yè
HSK 5
night, dark; in night; by night
寐 mèi sleep; be asleep