2. Interpretation: Youzhou (Youzhou refers to the whole province of Shanxi, northwestern Hebei, northern Henan and western Liaoning, which should be Beijing in this article) has the sea on the left, Taihang Mountain on the right, Juyongguan in the north and Hejian (the Yellow River helps water) in the south. It's really a place with rich products and dangerous situation.
3. Introduction to Beijing:
(1), called Ji in the Warring States Period, is the capital of Yan State, one of the "Seven Heroes in the Warring States Period". The Liao country is called Yanjing. The state of Jin was renamed Kyoto. The Yuan Dynasty called Dadu. Zhu Yuanzhang was renamed Beiping in the Ming Dynasty, and Judy, the Yongle Emperor, changed Beiping to Beijing. Beijing for short. The capital of People's Republic of China (PRC). It is a world-famous ancient city with a long history.
(2) Located at the northwest edge of North China Plain, about 150km southeast of Bohai Sea. Area 16800 km2. The total population of the city is 138 1.9 million. There are Du Jun in the north and Xishan in the west, and the mountains account for 62% of the city's area; The southeast is a plain formed by alluvial rivers such as Yongding River and Chaobai River, which slowly inclines to the Bohai Sea. There are many minerals in this mountainous area, such as coal and iron, as well as high-quality building materials, such as granite and marble.