俾夜作晝 bǐ yè zuò zhòu

DEFINITIONS

  1. lit. to make night as day (idiom); fig. to burn the midnight oil
  2. work especially hard

CHARACTERS

俾 bǐ so that, in order that; to cause; (Cant.) to give (synonymous with Mandarin 給)
夜 yè
HSK 5
night, dark; in night; by night
作 zuò
HSK 1
make; work; compose, write; act, perform
晝 zhòu daytime, daylight