San Diego (/ˌsæn diˈeɪɡoʊ/ SAN dee-AY-goh, Spanish: [san ˈdjeɣo]; Spanish for 'Saint Didacus') is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United States and the seat of San Diego County, the fifth most populous county in the United States, with 3,338,330 estimated residents as of 2019. The city is known for its mild year-round climate, natural deep-water harbor, extensive beaches and parks, long association with the United States Navy, and recent emergence as a healthcare and biotechnology development center. San Diego is the second largest city in the state of California, after Los Angeles.
Lieshan District, which belongs to Huaibei City, Anhui Province, has a total area of 388 square kilometers and a total population of 370000. The district has jurisdiction over 4 streets and 3 towns: Linhaitong Street, Baishan Street, Renlou Street, Yangzhuang Street, Lishan Town, Songfu Town and Gulao Town. In 2018, the GDP for the whole year reached 10.01 billion yuan, an increase of 3.8% over the same period last year. Liishan District is rich in mineral resources, including coal, kaolin, limestone, aluminum, iron, copper, etc., the development started early, the first mine in Huaibei coalfield was built in Lieshan. Places of interest include the ruins of Zhu County in the Western Han Dynasty, the ruins of Zhuyang County in the early Tang Dynasty, the early Neolithic Peiligang Culture site of the province's key cultural relics protection units, Longji Mountain Natural Scenic spot, Nanhu Park, National Urban Wetland Park, and Huajiahu. Be honored with "medium"