towri

例句：

1. 1. The old man was towing his cart across the field.
   老人正在拖着他的马车穿过田野。
2. 2. She was towing a heavy load on her bicycle.
   她骑着自行车拖着很重的负载。
3. 3. The team was towing a trailer full of tools and equipment.
   那支队伍拖着一辆装满工具和设备的拖车。