or·bit·alBrE/ˈɔːbɪtl/NAmE/ˈɔːrbɪtl/adjective[only before noun]connectedwiththeorbitofaplanetorobjectinspace(行星或空间物体)轨道的(BrE) (ofaroad道路) builtaroundtheedgeofatownorcitytoreducetheamountoftraffictravellingthroughthecentre(城市)外环路的
or·bit·alBrE/ˈɔːbɪtl/NAmE/ˈɔːrbɪtl/noun(BrE) averylargering road, especially if it is a motorway高速环行路◆theM25Londonorbital伦敦 M25 高速环行路