circuit

• 名词，指电流流经的闭合路径或回路，也指为执行特定功能而连接的元件系统。

A noun referring to a closed path or loop through which an electric current flows, or a system of components connected to perform a specific function.

1. Electrical pathB1formaltechnical

   A closed loop through which electric current flows.

   电路

   • The electrician checked the circuit for any faults.
   • A short circuit caused the power outage.
   • The circuit board contains many tiny components.

   同义词electric circuitelectrical circuitloop

2. Race trackB1formal

   A roughly circular track used for racing, especially in motorsports.

   赛道

   • The Formula 1 cars raced around the circuit.
   • The new circuit was built for the upcoming championship.
   • Drivers must complete ten laps of the circuit.

   同义词courseracing circuitspeedwaytrack

3. B2formal

   A regular journey or route taken, often in a circular pattern.

   路线

   • The mail carrier follows the same circuit every day.
   • The judge travels a circuit of towns to hear cases.
   • The salesperson's circuit covers three states.

   同义词beatcourseitinerarylooproundroutetour

• 动词，表示沿环形或闭合路线移动或旅行，常指系统性地或有正式安排地巡行。

A verb used to indicate the act of moving around or traveling along a circular or closed path, often in a systematic or official manner.

1. Travel aroundB2formal

   To travel or move around a specific area or route.

   环行

   • The politician circuited the country to gain support.
   • The band circuited the major cities during their tour.
   • He circuited the park every morning for exercise.

   同义词circlecircumnavigatego aroundlooporbittourtraverse