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.
Huaibei, referred to as "Huai", called "Xiangcheng" in ancient times, is a prefecture-level city in Anhui Province. The central city in the northeast of Anhui Province, an important energy city in the country. Located in the north of Anhui Province, it is located at the junction of Jiangsu, Shandong, Henan and Anhui provinces, Xiao County in the north, Bozhou in the south, Suzhou in the east and Shangqiu in Henan Province in the west. It is 150km long from north to south and 50km from east to west, with a total area of 2802 square kilometers, making it the smallest prefecture-level city in Anhui Province. The total population in 2016 is 2.165 million. It has jurisdiction over three municipal districts in Xiangshan District, Liishan District, Duji District and one county in Suixi County. The municipal government is stationed in Xiangshan District. Huaibei has a long history and a gathering of humanities. More than four thousand years ago, the eleven ancestors of Shang and Tang Dynasty built the city at the southern foot of Xiangshan, which was the beginning of civilization. Since then, successive dynasties have set up counties and counties here. There are Uncle Yu, Huan Tan, Ji Kang, Liu Ling and so on.