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.
Panjin City is a prefecture-level city under the jurisdiction of Liaoning Province, located in the central and southern part of Liaoning Province, located in the center of the Liaohe Delta, is a city at the mouth of the Liaohe River; its geomorphology is high in the north and low in the south, gradually tilting from north to south; it is located in the north temperate zone and belongs to the warm temperate continental semi-humid monsoon climate; it has jurisdiction over one county and three districts; the city has a resident population of 1.439 million at the end of 2018, with a total area of 4102.9 square kilometers. Panjin is an important oil and petrochemical industry base in China and one of the important central cities in Liaoning coastal economic belt. Panjin is a "petrochemical new city", built on the edge of oil and flourished because of oil; the red beach scenic spot dominated by the Red Beach National Scenic Corridor is a national 4A-level scenic spot and an excellent tourist scenic spot in Liaoning Province. The ancient town Tianzhuangtai was the battlefield of the last battle of the Sino-Japanese land war between China and Japan, and became the education of patriotism.