Is Longhua District in Shenzhen a suburb or an urban area?

Longhua District of Shenzhen is located in the center of Shenzhen, adjacent to the urban area of Shenzhen, so it is not a suburb. Longhua District is an administrative district of Shenzhen, which is rich in commercial, cultural and educational resources, and is also one of the important transportation hubs in Shenzhen. Shenzhen is located in the southeast coast of China, south of the Tropic of Cancer, bordering Daya Bay and Dapeng Bay in the east, the Pearl River Estuary and Lingdingyang in the west, and China and Hongkong across the Shenzhen River in the south. Shenzhen has a subtropical maritime climate with four distinct seasons, abundant rainfall and sunshine. Originally, Shenzhen was identified as one of the pilot cities of China's reform and opening up in 1979, and became the window of China's reform and opening up and a new immigrant.