outer ring
noun [ C ] US uk/ˌaʊ.tə ˈrɪŋ/ us/ˌaʊ.t̬ɚ ˈrɪŋ/
(地区或市镇)外围地区
an area around the edges of a region, town, or city
Big-box stores such as Ikea can be found in the outer ring of the city. 像宜家这样的仓储式商店可以在城市外围找到。
Compare: inner ring