Look at this picture and guess the names of four cities.

Qingdao, a prefecture-level city in Shandong Province, referred to as "Qing" for short, is a city under separate state planning? , mega-cities, sub-provincial cities, Shandong economic center, important national coastal cities, coastal holiday tourist cities and international port cities? , an important pioneer area for the development of modern marine industry in the country, an international shipping hub in Northeast Asia, a maritime sports base, a major node city of the "Belt and Road" New Eurasian Continental Bridge Economic Corridor and a strategic fulcrum for maritime cooperation.

Shenyang, referred to as Shengjing and Fengtian for short, is the capital of Liaoning Province, a sub-provincial city, a megacity and the core city of Shenyang metropolitan area. It is an important central city in Northeast China, an advanced equipment manufacturing base and a national historical and cultural city approved by the State Council. The whole city governs 10 district and 2 counties, manages 1 county-level cities, and covers an area of 1.

Yunnan, referred to as Yun (Yunnan) for short, is located in the southwest border of China. The Tropic of Cancer runs through the southern part of Yunnan Province, belonging to low latitude inland areas, bordering Guizhou Province and Guangxi Zhuang Autonomous Region in the east, Sichuan Province in the north, Xizang Autonomous Region in the northwest, Myanmar in the west and Laos and Viet Nam in the south.

There are 25 border counties in Yunnan bordering Myanmar, Laos and Vietnam respectively, with a border of 4,060 kilometers, which is the window and gateway of China to Southeast Asia and South Asia.

Changsha, the capital of Hunan Province, is an important central city in the middle reaches of the Yangtze River. , the national "two-oriented society" comprehensive reform pilot zone, the national important grain production base, the middle reaches of the Yangtze River urban agglomeration and the Yangtze River Economic Belt important node cities. ? It is adjacent to Yichun and Pingxiang in Jiangxi Province in the east, Loudi and Yiyang in the west, Zhuzhou and Xiangtan in the south and Yueyang in the north.