2. The narrow sense of "Jiangsu, Zhejiang and Shanghai" usually refers to the Yangtze River Delta with Shanghai as the leader, including Jiangsu Province and Zhejiang Province, with a total of 16 cities: Shanghai and Nanjing, Suzhou, Wuxi, Nantong, Changzhou, Zhenjiang, Yangzhou and Taizhou in Jiangsu Province. Hangzhou, Ningbo, Shaoxing, Jiaxing, Huzhou, Zhoushan and Taizhou in Zhejiang Province are recognized as one of the six metropolitan areas in the world.
Jiangsu, referred to as "Su" for short, is the provincial administrative region of China and the capital of Nanjing. It is named after the initials of "jiangning house" and "Suzhou House". Located in the Yangtze River Economic Belt, located in the eastern coastal center of Chinese mainland and the lower reaches of the Yangtze River, it is adjacent to the Yellow Sea in the east, Zhejiang and Shanghai in the southeast, Anhui in the west, Shandong in the north, across the Yangtze River and Huaihe River, and the Beijing-Hangzhou Grand Canal passes through the territory.
Zhejiang, referred to as "Zhejiang", is the capital of Hangzhou. Qiantang River, the largest river in China, is called Jiangzhe River because of its twists and turns. Also known as Zhejiang, the province is named Jiang. Located in the south wing of the Yangtze River Delta on the southeast coast of China, it borders the East China Sea in the east, Fujian in the south, Anhui and Jiangxi in the west and Shanghai and Jiangsu in the north. The straight-line distance from east to west and from north to south in Zhejiang Province is about 450 kilometers. According to the results of the second national land survey, the land area of Zhejiang is 105500 square kilometers, accounting for 1. 1% of the whole country, and it is one of the smaller provinces in China.
Shanghai, referred to as "Shanghai" or "Shen" for short, is a municipality directly under the Central Government of the People's Republic of China, a national central city, a megacity, a core city of Shanghai, Hangzhou and Ningbo, an international economic, financial, trade, shipping and scientific and technological innovation center, and the first batch of coastal open cities. Located at the mouth of the Yangtze River, Shanghai is the leading city in the Yangtze River Economic Belt, facing Kyushu Island across the sea, Hangzhou Bay in the south and Jiangsu and Zhejiang provinces in the northwest.