共刺激 gòng cì jī

DEFINITIONS

  1. (immunology) costimulation
  2. costimulatory

CHARACTERS

共 gòng
HSK 2
together with, all, total; to share
刺 cì
HSK 5
stab; prick, irritate; prod
激 jī
HSK 4
arouse, excite, incite; quickly