motor bogie

例句：

1. 1. The engineer inspected the motor bogie before starting the train.
   工程师在启动火车前检查了机车头。
2. 2.The train's motor bogie was replaced after it broke down.
   火车的机车头出了故障后被更换了。
3. 3.The engineer carefully checked the motor bogie to ensure it was in good condition.
   工程师仔细检查了机车头，确保它处于良好状态。