n. 电路, 环(行)道, 巡回

[计] 线路; 电路

n. an electrical device that provides a path for electrical current to flow

n. an established itinerary of venues or events that a particular group of people travel to

n. (law) a judicial division of a state or the United States (so-called because originally judges traveled and held court in different locations); one of the twelve groups of states in the United States that is covered by a particular circuit court of appeals

v. make a circuit