How to describe the prosperity in the prosperous Tang Dynasty?

With the change of geological climate, the expansion of Mongolian desert and the drying up of waters around Xi 'an, Xi 'an has become a city struggling on the edge of the Loess Plateau. China has been open for more than 20 years, and the development of coastal cities has mushroomed, while the once brilliant Xi has been crawling behind. The government racked its brains, and leaders changed one after another, trying to develop Xi 'an's tourism by relying on well-preserved historical sites. But the best preserved historical sites of the Ming and Qing Dynasties are not comparable to those of Beijing. Xi 'an has been wandering for a long time. Until a few years ago, it was suggested that Xi 'an was the capital of China in its heyday. Why should we show the Ming and Qing history behind Beijing? What Xi 'an wants to show the world is the history of China, and the message to the world should be: "Xi 'an-ancient and prosperous China". The news seems to have touched heaven. God said that you finally found your place and you want to return to the prosperous Tang Dynasty. In an instant, the climate suddenly became mild, the weather was favorable, it began to rain, and grass grew on the yellow land. In the past few years, mountains and plains have been covered with green vegetation, and mountain streams have begun to converge into rivers. Those sighing Xi people suddenly realized something and looked up at the sky. Wow, the Jiangnan scenery with green mountains and green waters is back! Let's take action to reproduce the prosperity of China in the prosperous Tang Dynasty. Who is Xi 'an's man? When you walk in the street, you will hear accents from all over the country. Xi is an immigrant city. When New China made Beijing its capital, Xi became an important base of China's military, science and technology and heavy industry because of its superior geographical position. Top experts from all over the country gathered here, making a blockbuster quietly. Xi has changed beyond your recognition. Big names come, rich people come, red and purple movie star Jiang Laian buys a mansion, and. . . . .