The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With 8,472 square miles (21,940 km2) and a population of more than 2.2 million people, it is the second-largest metropolitan area centered in Missouri (after Greater St. Louis) and is the largest metropolitan area in Kansas, though Wichita is the largest metropolitan area centered in Kansas. Alongside Kansas City, Missouri, these are the suburbs with populations above 100,000: Overland Park, Kansas; Kansas City, Kansas; Olathe, Kansas; Independence, Missouri; and Lee's Summit, Missouri.
Bengbu, referred to as clam, also known as Pearl City, is a prefecture-level city in Anhui Province, an important comprehensive industrial base in Anhui Province, located in the north of Anhui Province, the middle reaches of the Huaihe River, with a total area of 5950.72 square kilometers. The registered population is 3.8125 million and the resident population is 3.3767 million. As of 2018, Bengbu has jurisdiction over 4 municipal districts and 3 counties: Longzihu District, Bengshan District, Yuhui District, Huaishang District, Huaiyuan County, Wuhe County, Guzhen County, Bengbu High-tech Development Zone and Bengbu Economic Development Zone. Bengbu Municipal Government is located at 3115 Donghai Avenue, Bengshan District. According to the history, Bengbu is the place where pearls are collected in ancient times, so it is known as "Pearl City". On January 1, 1947, Bengbu was officially established as the first city in Anhui Province. In April 1952, Bengbu City was directly under Anhui Province. Bengbu