Arctic Circle

北极圈

archbishop, archbishopric, archdeacon, archdeaconry, archdiocese, archduke, archer, archery, archetypal, archetypally, archetype, archipelago, architect, architectural, architecture, archive, archives, archivist, archway, Arctic, ardent, ardently, ardor, ardour (US ardor), arduous, arduously, are, area, area code (US) dialling code, areca, areca nut (also betel-nut), aren't, arena, arete, argon, argot, arguable, arguably, argue, argument,