世界上的山城很多，像美国旧金山这样的山城，还真有它自己的个性。这座城市由40座丘陵组成，连市中心的街道，也如波涛起伏，其坡度可达45°之陡。接近中国城的地方，还有一条盘山路，可以说是城市交通的一大人文景观。旧金山多雾，清晨开着汽车沿着盘山路盘旋而上，犹如攀云 There are many mountain cities in the world, such as San Francisco, the United States, really have its own personality. The city consists of 40 hills, with its downtown streets, which are also steep, with steep slopes of up to 45 °. Close to Chinatown, there is also a winding road that can be described as a large cultural landscape of urban traffic. Foggy San Francisco, drove along the winding road early in the morning, like climbing clouds