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.
Pinggui District belongs to Hezhou City, Guangxi Zhuang Autonomous region. It is located in the northeast of Guangxi and the middle of Hezhou City, with a total area of 2022 square kilometers. As of 2018, the total population is 415000, and there are mainly Han, Yao, Zhuang and other nationalities living in the territory. As of 2018, Pinggui District has jurisdiction over 1 street, 7 towns and 1 nationality township, and the district government is located at No. 1 Pinggui Avenue, Xiwan Street. In the 23rd year of the people's Republic of China (1934), the Guangxi Mining Bureau set up an office in Xiwan, acting Pingle and Guilin, hence the name "Pinggui" and has been in use all the time. In April 2007, the people's Government of Guangxi Zhuang Autonomous region formally approved the establishment of Hezhou Pinggui Management District, which is the dispatched office of Hezhou people's Government. On July 11, 2016, with the approval of the State Council, it was agreed to establish Pinggui District of Hezhou City.