circuit

If any wire is disconnected, the electrical circuit will be broken and the light will turn off.

(Chinese) 如果任何导线断开，电路就会中断，灯就会熄灭。

The technician carefully checked the printed circuit board for any signs of damage.

(Chinese) 技术人员仔细检查了印刷电路板是否有损坏迹象。

The professional racing drivers completed fifty laps around the city's grand prix circuit.

(Chinese) 职业赛车手绕着城市的顶级大奖赛环形赛道跑完了五十圈。

The park features a three-mile running circuit that is popular with local joggers.

(Chinese) 公园里有一条三英里长的环形跑道，深受当地慢跑者的欢迎。