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.
Baisha Li Autonomous County, an autonomous county under the jurisdiction of Hainan Province, is located in the central and western part of Hainan Island, latitude 18 °56 & #39;-19 °29 & #39;, east longitude 109 °02 & #39;-109 °42 & #39;. It is bordered by Qiongzhong County in the east, Wuzhishan City in the southeast, Ledong County in the south, Changjiang County in the west and Danzhou City in the north. The territory is 63 kilometers from north to south and 68 kilometers from east to west, with a total area of 2117 square kilometers. It has jurisdiction over 4 towns and 7 townships, and the people's Government of Autonomous County is stationed in Yacha Town. At the end of 2016, Baisha Li Autonomous County had a resident population of 171600, with a regional GDP of 4.427 billion yuan. In March 2017, the finalists of the "2017 Top 100" take a deep breath