towing head

例句：

1. 1.The truck was towing a heavy trailer behind it.
   卡车后面拖着一辆沉重的拖车。
2. 2.The car was towing a trailer when it hit the pothole.
   汽车在遇到坑洼时拖着拖车。
3. 3.The team decided to tow the injured player to the hospital.
   团队决定把受伤的球员拉到医院。