an established or official way of doing something.
the police are now reviewing procedures
同义词：
course of actionline of actionplan of actionpolicyseries of stepsplanmethodsystemstrategystratagemwayapproachformulamechanismmethodologyMO (modus operandi)SOP (standard operating procedure)techniquemeansmeasureprocessproceedingoperationagendaroutinedrillpractice
