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.
Pingli County, which belongs to Ankang City, Shaanxi Province, is located between 31 °37mm in north latitude and 109 °- 109 °33' in east longitude. It is bordered by Zhuxi County in Hubei Province in the east, Chengkou County in Chongqing in the south, Langao County in Ankang City, Shaanxi Province in the west, and Ankang City, Hanbin District, Xunyang County in Shaanxi Province in the north, and at the junction of Shaanxi, Hubei and Chongqing provinces in the north. The county seat is 60 kilometers away from the central city of Ankang City and 263 kilometers away from the provincial capital Xi'an. Pingli County is the "hometown of Nu WA". With 150000 mu of ecological tea garden and 38000 mu of gynostemma pentaphyllum, Pingli County is the first county in the production of gynostemma pentaphyllum and a famous tea county in Northwest China. In 2018, Pingli County had jurisdiction over 11 towns, with a regional gross domestic product (GDP) of 9.962 billion yuan, including 1.069 billion yuan for the primary industry.