缺一不可 quē yī bù kě

DEFINITIONS

  1. not a single one is dispensable
  2. can't do without either

CHARACTERS

缺 quē
HSK 4
be short of, lack; gap, deficit
一 yī
HSK 1
one; a, an; alone
不 bù
HSK 1
no, not; un-; negative prefix
可 kě
HSK 2
may, can, -able; possibly