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.
Leling, a county-level city under the jurisdiction of Dezhou City, Shandong Province, is located at the junction of two provinces and four cities of Shandong and Hebei (Dezhou-Binzhou-Cangzhou-Jinan); it is part of the North China Plain, alluvial from the Yellow River and flat; there are Zhangwei River, Magee River and Dehuixin River; it is a warm temperate semi-humid continental monsoon climate with four distinct seasons; it has 4 streets, 9 towns and 3 townships under its jurisdiction, with a total population of 724000 in 2018. In addition, Leling is also a national intellectual property rights strong county project demonstration county (district). In 2018, the regional GDP of Leling City reached 27.962 billion yuan, an increase of 7.5% over 2017 in terms of comparable prices. On December 7, 2018, it was selected into the cultural tourism charm list of 2018 "Charming Chinatown". The second batch of water-saving society construction up to the standard county (district). ..