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.
Cangxi County, which belongs to Guangyuan City, Sichuan Province, is located in the northern margin of Sichuan Basin, the low foothills of Dabashan Mountain, the hilly area of Zhongshan, and the southern end of Guangyuan City, between 31 °37 degrees north latitude and 32 °10 degrees east longitude. The area covers an area of 2346.46 square kilometers. Cangxi County is a subtropical humid monsoon climate zone, with rich heat, abundant Rain Water, long frost-free period, mild climate, four distinct seasons, long winter and short summer, longer spring than autumn, with the climatic characteristics of "cold mountains and thick spring at the bottom of the valley". As of 2018, Cangxi County has jurisdiction over 24 towns, 15 townships, and 3 township-level units under the jurisdiction of the county government in Lingjiang Town. By the end of 2018, the total registered population of Cangxi County was 758400. Cangxi County was called "Qin long Lock key" and "Shu Bei Ping Fan" in ancient times.