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.
Qianjiang, a county-level city directly under the jurisdiction of Hubei Province, is located in the Jianghan Plain in the central part of Hubei Province, with the Han River in the north and the Yangtze River in the south, located in the lower reaches of the Han River, across the Dongjing River and the upper and lower Xijing River. the climate belongs to the north subtropical monsoon humid climate. It has jurisdiction over 7 streets and 10 towns. The population in 2016 is 962000. Qianjiang is an important member of Wuhan urban agglomeration and urban agglomeration in the middle reaches of the Yangtze River. The county was founded in 965 AD (the third year of Song Qiande). Jianghan Oilfield, one of the top ten oilfields in China, has jurisdiction over 3 provincial-level economic development zones, 6 state-owned farms and 16 towns. It is known as "the hometown of Cao Yu, Jianghan oil city, water garden and hometown of lobster". In 2017, the gross domestic product of Qianjiang City reached 67.186 billion yuan. In June 2017, Qianjiang City was named as a national health city.