Phoenix (/ˈfiːnɪks/ FEE-niks; Navajo: Hoozdo; Spanish: Fénix or Fínix,[citation needed] Walapai: Banyà:nyuwá) is the capital and most populous city of the U.S. state
of Arizona, with 1,608,139 residents as of 2020. It is the fifth-most populous city in the United States, and the only U.S. state capital with a population of more than one million residents.
Phoenix is the anchor of the Phoenix metropolitan area, also known as the Valley of the Sun, which in turn is part of the Salt River Valley. The metropolitan area is the 11th largest by population in the United States, with approximately 4.85 million people as of 2020. Phoenix, the seat of Maricopa County, has the largest area of all cities in Arizona, with an area of 517.9 square miles (1,341 km2), and is also the 11th largest city by area in the United States. It is the largest metropolitan area, both by population and size, of the Arizona Sun Corridor megaregion.
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.