昼伏夜出 zhòu fú yè chū

DEFINITIONS

  1. nocturnal
  2. to hide by day and come out at night

CHARACTERS

昼 zhòu
HSK 6
daytime, daylight
伏 fú
HSK 6
crouch, crawl, lie hidden, conceal
夜 yè
HSK 5
night, dark; in night; by night
出 chū
HSK 1
go out, send out; stand; produce