For some reason he smiled at what he saw, and turned to walk some yards along the towpath.
不知什么原因,他朝他所看到的一切笑了笑。然后转身沿着纤道走出几码。
英语百科
Towpath
A towpath is a road or trail on the bank of a river, canal, or other inland waterway. The purpose of a towpath is to allow a land vehicle, beasts of burden, or a team of human pullers to tow a boat, often a barge. This mode of transport was common where sailing was impractical due to tunnels and bridges, unfavourable winds, or the narrowness of the channel.