Los Angeles (US: /lɔːs ˈændʒələs/ (listen) lawss AN-jəl-əs;[a] Spanish: Los Ángeles [los ˈaŋxeles], lit. 'The Angels'), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world's most populous megacities. Los Angeles is the commercial, financial, and cultural center of Southern California. With a population of roughly 3.9 million residents within the city limits as of 2020, Los Angeles is known for its Mediterranean climate, ethnic and cultural diversity, being the home of the Hollywood film industry, and its sprawling metropolitan area. The city of Los Angeles lies in a basin in Southern California adjacent to the Pacific Ocean in the west and extending through the Santa Monica Mountains and north into the San Fernando Valley, with the city bordering the San Gabriel Valley to its east. It covers about 469 square miles (1,210 km2), and is the county seat of Los Angeles County, which is the most populous county in the United States with an estimated 9.86 million residents as of 2022.
Liupanshui City is a prefecture-level city in Guizhou Province. Liupanshui City is located in Wumeng Mountain area of western Guizhou, with an annual average temperature of 15 ℃, an average temperature of 19.7 ℃ in summer and an average temperature of 3 ℃ in winter. With a cool, comfortable, moist, fresh climate and moderate ultraviolet radiation, it has been awarded the title of "cool capital of China" by the Chinese Meteorological Association and is the only city in the country named after its climatic characteristics. During the Spring and Autumn period, Liupanshui was a dependency of Yelang; during the warring States period, the city was a dependency of Yelang, which entered the farming era and reflected the characteristics of slave production relations due to the use of metal tools; after Qin unified China, it was a dependency of Hanyang County, Ba County. Liupanshui is located in the junction of Yunnan and Guizhou provinces, the watershed in the upper reaches of the Yangtze and Pearl Rivers, and both sides of the Nanpanjiang and Beipanjiang basins, which is rich in mineral resources. Traffic extends in all directions and is important in the southwest.