不分上下 bù fēn shàng xià

DEFINITIONS

  1. not to know one's place

CHARACTERS

不 bù
HSK 1
no, not; un-; negative prefix
分 fēn
HSK 1
divide; small unit of time etc.
上 shàng
HSK 1
top; superior, highest; go up, send up
下 xià
HSK 1
under, underneath, below; down; inferior; bring down