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.
Putian, Fujian Province has jurisdiction over prefecture-level cities, also known as "Xinghua" in ancient times, also known as "Puyang" and "Puxian". The territory is high in the northwest and low in the southeast, with a saddle-shaped cross section, located on the northern edge of the Tropic of Cancer, bordering the ocean to the east, and is a typical subtropical maritime monsoon climate; as of 2018, it has jurisdiction over one county and four districts, with a total area of 4200 square kilometers; the resident population is 2.9 million. Putian City has a profound history, known as "Xinghua", known as "seaside Zoulu" and "literature famous state". Since the Tang Dynasty, 2482 Jinshi, 21 top scholars and 17 prime ministers have emerged. With sound infrastructure, Meizhou Bay, Xinghua Bay and Ping Bay are surrounded by three bays. Meizhou Bay is a good deep-water port with more than 150 berths of more than 10,000 tons. Fuzhou-Xiamen Railway and Xiang-Li Railway run through the whole territory.