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.
Tianzhu County, located in the east of Guizhou Province, is under the jurisdiction of Qiandongnan Miao and Dong Autonomous Prefecture. Tianzhu County is located in eastern Guizhou and the lower reaches of Qingshui River, bordering Xinzhuang County, Jingzhou County, Huitong County, Zhijiang County and Jianhe County, Jinping County and Sansui County of Guizhou Province. In 2013, Tianzhu County achieved a GDP of 4.91 billion yuan, financial revenue of 654 million yuan, investment in fixed assets of 7.098 billion yuan, per capita disposable income of urban residents 19035 yuan, and per capita net income of farmers 5601 yuan. Tianzhu County specialties are: Tianzhu navel orange, Tianzhu local duck and so on. Famous figures are: Wang Tianpei, Yang Changhuai and so on. September 25, 2018, won the honor of "2018 e-commerce into the rural comprehensive demonstration county" of the Ministry of Commerce.