• Tulsa
  • Tianjin

Tulsa (/ˈtʌlsə/) is the second-largest city in the state of Oklahoma and 47th-most populous city in the United States. The population was 413,066 as of the 2020 census. It is the principal municipality of the Tulsa Metropolitan Area, a region with 1,023,988 residents. The city serves as the county seat of Tulsa County, the most densely populated county in Oklahoma, with urban development extending into Osage, Rogers, and Wagoner counties.

Tulsa was settled between 1828 and 1836 by the Lochapoka Band of Creek Native American tribe and most of Tulsa is still part of the territory of the Muscogee (Creek) Nation.[a]

Historically, a robust energy sector fueled Tulsa's economy; however, today the city has diversified and leading sectors include finance, aviation, telecommunications and technology. Two institutions of higher education within the city have sports teams at the NCAA Division I level: Oral Roberts University and the University of Tulsa. As well, the University of Oklahoma has a secondary campus at the Tulsa Schusterman Center, and Oklahoma State University has a secondary campus located in downtown Tulsa. For most of the 20th century, the city held the nickname "Oil Capital of the World" and played a major role as one of the most important hubs for the American oil industry.

Tianjin, referred to as Tianjin, is the provincial administrative region, municipality directly under the Central Government, national central city and mega city of the people's Republic of China, and the economic center of the area around the Bohai Sea as approved by the State Council. By 2018, there were 16 districts under the jurisdiction of the city, with a total area of 11916.85 square kilometers, a built area of 1007.91 square kilometers, a resident population of 15.596 million, an urban population of 12.9681 million, and a urbanization rate of 83.15%. Tianjin is located in North China, the northeast of the North China Plain and the lower reaches of the Haihe River Basin, facing the Bohai Sea to the east. It is the confluence and estuary of the five major tributaries of the Haihe River, namely, the South Canal, the Ziya River, the Daqing River, the Yongding River and the North Canal. Tianjin is the main node of the China-Mongolia-Russia Economic Corridor and the Maritime Silk Road.
Airport In Tianjin - Tianjin Binhai International Airport
Tianjin Binhai International Airport (Tianjin Binhai International Airport, IATA: TSN, ICAO: ZBTJ), located in Dongli District, Tianjin, China, 13 kilometers away from the city center, is a 4E-level civil international airport     , is China International Aviation Logistics Center   , an airport with international scheduled flights, a national first-class air port open to the outside world, and one of China's major air cargo centers.    
Tianjin Binhai International Airport, formerly known as Tianjin Zhangguizhuang Airport, was first built in November 1939; it was officially opened to navigation in 1950; the first phase of the expansion project was completed in 2007; the second phase of the expansion project was completed in August 2014.   
According to the official website of the airport in August 2017, Tianjin Binhai International Airport has two terminal buildings, namely T1 (international and regional) and T2 (domestic), with a total construction area of ​​364,000 square meters and a warehouse area of ​​74,000 square meters; It has 2 runways with lengths of 3600 meters and 3200 meters respectively; 59 seats.   By the end of 2016, the airport had opened 180 air routes and 132 navigable cities.  
In 2019, Tianjin Airport handled 23.813 million passengers, a year-on-year increase of 0.9%; cargo and mail throughput was 226,000 tons, a year-on-year decrease of 12.6%; and transported 167,000 vehicles, a year-on-year decrease of 6.4%.  
In October 2020, it was rated as an advanced group in the national transportation system to fight against the new crown pneumonia epidemic.  
Travel Notes In Tianjin
Tianjin impression. . . . . . memorable
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Beijing-Tianjin Walking Baby Story, a precise harvest for educational anxiety
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Extraordinary Gengzi Year Simple Leting Seaside and Lion City Tour
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Gengzi Yangchun Traveling to Panshan
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