必不可少组成 bì bù kě shǎo zǔ chéng

absolute necessity; sine qua non

Word data

HSK Not in HSK
Frequency Unknown

Definitions

  1. 1. absolute necessity
  2. 2. sine qua non

Characters

Character Meaning
must; necessarily; certainly
not; no; (negative prefix)
can; may; able to
few; less; to lack
group; to form; team
to become; to succeed; to complete