回调
huí​diàohuí​tiáo

callback

huí​diào callback
  1. 回 huí verb
    to return
    to return to a place; to go back or come back
  2. 调 調 diào verb
    to transfer
    To transfer, move, or swap personnel, troops, or things; to assign to a new position; to exchange locations.

huí​tiáo downward adjustment
  1. 回 huí verb
    to return
    to return to a place; to go back or come back
  2. 调 調 tiáo verb
    to adjust
    To adjust or regulate; to make something balanced, harmonious, or functional.