igniter plug

例句：

1. 1.The car's engine needs an ignition plug to start.
   这辆车的引擎需要点火塞才能启动。
2. 2. The mechanic replaced the old ignition plug with a new one.
   技师用一个新的点火塞替换了旧的。
3. 3.The ignition system is responsible for starting the car's engine.
   点火系统负责启动汽车的引擎。