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.
Tengchong, a county-level city hosted by Baoshan City, is located in the southwest of Yunnan Province, connected with Longyang District in the east, Longling County and Lianghe County in the south, Yingjiang County and the Federal Republic of Myanmar in the west, and Lushui City in Nujiang Lisu Autonomous Prefecture in the northeast. The urban area is 606km away from the provincial capital Kunming, 200km away from Myitkyina in Myanmar and 602km away from Ledo, India. It is an important gateway and node for China to South and Southeast Asia. As of 2014, Tengchong City covers an area of 5845 square kilometers and has a border length of 148.075 kilometers. It has jurisdiction over 11 towns and 7 townships. In 2014, the total population (resident population) was 659900; in 2014, the regional gross domestic product (GDP) reached 13.34 billion yuan. Tengchong is a famous hometown of overseas Chinese.