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.
Luo Ding, a county-level city under the jurisdiction of Guangdong Province, is hosted by Yunfu City. In ancient times, it was called Yuzhou, also known as Longxiang. Located in the west of Guangdong Province, south of the Xijiang River, it is the traffic hub of Xijiang Corridor. It has been regarded as a great defense and an important place in Fusui since ancient times. In the Ming Dynasty, it was also known as the "pivot of the whole Guangdong Province". It was once an important military town in the southwest of Shouling in the town of Guangdong. Luoding is one of the gateways for the southwest provinces to enter Guangdong, and it is also the window for Guangdong to radiate to the great southwest of China. Luoding is an important node city in the Pearl River-Xijiang Economic Belt. The central, northeastern and southern parts of Luoding City are basins and hills. Luoding Basin is the largest basin in Guangdong, with a unique basin climate, and the plain landforms of Luoding are mainly distributed here. Luoding is the first batch of famous historical and cultural cities in Guangdong Province. In 2012, Luo Ding was included in the pilot project of financial reform in counties directly under the control of Guangdong Province. two hundred and one