What do you mean by Zhao Guojun Qingke Changan?

Chang 'an, a distinguished guest of Zhao Guojun, was an official of other vassal states in ancient times. Chang 'an is the name of the ancient capital. In the seventh year of Emperor Gaozu (200 BC), the capital was here. Since then, the early Eastern Han Dynasty, the Western Jin Dynasty, the former Zhao Dynasty, the former Qin Dynasty, the later Qin Dynasty, the Western Wei Dynasty, the Northern Zhou Dynasty, the Sui Dynasty and the Tang Dynasty have all settled here. At the end of the Western Han Dynasty, Lvlin and Chimei, and at the end of the Tang Dynasty, the peasant rebels led by Huang Chao also built their capital here. There are two ancient cities: when Seoul was built in Hui Di, it was in the northwest of Xi today. When Emperor Wendi built the city, it was named Daxing City, so the site includes Xi 'an City and three areas: east, south and west. At the end of the Tang Dynasty, the northern part of the old city was rebuilt into a new city, which is now Xi City. Jun Qing is a compound word, meaning: emperor and courtier. Jun means: the feudal era refers to emperors, princes and so on. A courtesy title for the other party. Qing means: the name of ancient senior officials: three public officials and nine Qing officials. In ancient times, people were respectful names, such as Xunzi as Xun Qing. China Since the Tang Dynasty, the monarch has called his subjects. The superior is called the subordinate, and the elder is called the junior. Husband and wife call each other.