towing alongside

例句：

1. 1.The car was towing heavy loads on the highway.
   汽车在高速公路上拖着沉重的货物。
2. 2. The boat was towing a large net behind it.
   船拖着一个大网在后面。
3. 3.The truck was towing a trailer full of tools.
   卡车拖着一个装满工具的拖车。