英语
德语
track·less [ˈtrækləs] 形 不变的
1. trackless (having no paths):
- trackless desert, forest
-
2. trackless esp 美 (not running on tracks):
单语范例（未经PONS编辑处理）
The streetcar system peaked in size around 1930 and was gradually replaced with trackless trolleys and buses, with cuts as late as 1985.
en.wikipedia.org The battalion was deployed in a trackless wilderness, where no mules could go and no civilian population lived which could help logistically.
en.wikipedia.org The required work included purchase of a new trackless equipment fleet, upgrades to pumping and ventilation equipment and some maintenance of the other infrastructure.
en.wikipedia.org Residents and city officials would like the trackless trolleys back.
en.wikipedia.org The lower-level busway was later closed, and all buses (and trackless trolleys, later discontinued) were routed to the upper level.
en.wikipedia.org