1. So I drove back to the town and began to retrace the route, taking frequent glances at the map.
    因此，我驱车返回那座城镇，并开始重新按路线走，同时频频地看着地图。

2. So I drove back to the town and began to retrace the route, taking frequent glances at the map.
    于是我驾车返回小镇，重新按路线行驶。