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.
Qingzhen City is a county-level city under the jurisdiction of Guiyang City, which is located in the middle of Guizhou Province, between longitude 106 °07 / 106 °32 east and latitude 26 °25 / 26 56 'north. In 1992, it was approved by the State Council to withdraw counties and cities, and in 1996 it was placed under the jurisdiction of Guiyang City. In 1999, it was listed as one of the 20 economically strong counties (cities and districts) built in Guizhou Province by the provincial party committee and provincial government. Hongfeng Lake, a famous 4A scenic spot, is located in Hongfeng Lake Community, Qingzhen City. By 2016, Qingzhen had jurisdiction over 9 townships and 5 communities, with a total population of 482000 (permanent residents for half a year or more). The total administrative area is 1492 square kilometers. In 2016, the GDP for the whole year was 28.0109 billion yuan, an increase of 13.5% over the previous year. Qingzhen City has successively won the "National double support Model City".