计程仪

例句：

1. 1. The driver used the speedometer to monitor his speed.
   司机使用里程表来监控他的车速。
2. 2. The car's odometer showed that it had traveled a significant distance.
   汽车的里程表显示它已经行驶了一段相当的距离。
3. 3. The mechanic checked the odometer before starting the engine.
   在启动发动机之前，机械师检查了里程表。