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.
Panzhou is a county-level city directly under the jurisdiction of Guizhou Province and managed by Liupanshui City. it is located at the junction of Yunnan and Guizhou, at 104 °17 & # 39 in east longitude, 104 °57 & # 39 in north latitude, 25 °19 & # 39 in north latitude, 26 °17 & # 39 in north latitude, Pu'an in the east, Xingyi in the south, Fuyuan and Xuanwei in the west and Shuicheng in the north. It is the west gate of Guizhou and is known as the key to Yunnan and Guizhou and the fortress of Sichuan and Guizhou. Panzhou has a long history and culture, profound ethnic customs, there are ancient human civilization sites Panxian Dadong, ancient ginkgo, Dadong Zhuhai, Wumeng prairie three Guizhou provincial scenic spots. Panzhou, known as the hometown of ancient ginkgo biloba in the world, is Yungui transportation, energy, trade, logistics,.