How many basins are there in our country?

The four major basins in my country are the Tarim Basin, Junggar Basin, Qaidam Basin and Sichuan Basin. The Tarim Basin and Junggar Basin are located in the inland northwest of my country, within Xinjiang, and are separated from the north and south sides of the Tianshan Mountains. These two basins are surrounded by high mountains, and the interior is relatively flat, with vast stretches of desert and Gobi. The Tarim Basin is the largest basin in my country, and the Takmakan Desert inside the basin is the largest desert in my country and the largest mobile desert in the world. In the high mountain foothills on the edge of the Tarim Basin and Junggar Basin, there are a series of small oases distributed where there are water sources for irrigation. The foothills of the Tianshan Mountains and the Kunlun Mountains were a "green channel" on the ancient "Silk Road" that connected the Eurasian continent. The Qaidam Basin is located in Qinghai Province in the northeastern part of the Qinghai-Tibet Plateau, with an average altitude of about 3,000 meters. It is a typical inland plateau basin. Most of the interior of the basin is Gobi, desert, swamps and salt lakes in the east. The Sichuan Basin is located in the eastern part of Sichuan Province, my country. The basin is surrounded by mountains and plateaus. The interior of the basin is undulating with low hills and hills, with an altitude of about 500 meters. Only the Chengdu Plain has a relatively flat terrain, spreading diagonally like a fan in the west of the basin.