They travelled through the mountains by way of an ancient walled city.他们取道一座有城墙的古城走过山区。The walled city is an important tourist attraction.这座由城墙围绕的城市是个重要的旅游胜地。The walled city was attacked by barbarian hordes.那座筑有城墙的城市遭到大批野蛮人的进攻。Why not visit the beautiful walled city of York?为什么不参观一下围有城墙的美丽城市约克呢？