towing operating mode management

例句：

1. 1.The car was towed to the garagefor repairs.
   这辆车被拖到车库进行修理。
2. 2. The boat was towed backto the dock after the storm.
   暴风雨过后，这艘船被拖回码头。
3. 3. Thetractor was towed by a truckto the field.
   拖拉机被一辆卡车拖到田间。