2. Briefly introduce the scenic spots and historical sites of the Great Wall.

3. Briefly introduce 50 words of the Great Wall.

4. Briefly introduce 20 words of the Great Wall.

1. The Great Wall is an ancient defense project with the longest construction time and the largest engineering quantity in China and even in the world.

2. Since the 7th and 8th centuries BC, it has been built continuously for more than 2,000 years, covering a vast land in northern and central China with a total length of more than 50,000 kilometers.

3. The Great Wall that stretches across Wan Li is not only a single wall, but a complete defense engineering system composed of various fortifications such as the wall, watchtower, Guancheng, Dunbao, Yingcheng, Wei Shuo and town beacon towers.

Such a huge project is unique not only in China, but also in the world, so it was listed as one of the seven wonders of the Middle Ages with the Colosseum and the Leaning Tower of Pisa hundreds of years ago.

5. The Great Wall, also known as the Great Wall of Wan Li, was an ancient military fortress in China. It is a tall, solid and continuous long wall, which is used to limit the enemy's actions.

6. The Great Wall is not a simple isolated wall, but a defense system with the wall as the main body and a large number of cities, obstacles, pavilions and landmarks.

7. The history of building the Great Wall can be traced back to the Western Zhou Dynasty, from which the famous allusion "the bonfire plays princes" happened in Haojing (now Xi 'an, Shaanxi).

8. During the Spring and Autumn Period and the Warring States Period, countries competed for hegemony and defended each other, and the construction of the Great Wall reached its first climax, but the construction length at this time was relatively short.

9. After the Qin Dynasty destroyed the six countries and unified the world, Qin Shihuang connected and repaired the Great Wall of the Warring States Period, which was called the Great Wall of Wan Li.

10. The Ming Dynasty was the third dynasty to overhaul the Great Wall, and most of the Great Wall seen by people today was built at this time.

1 1. China has basically recorded the Great Wall construction in various periods, which has been more than 2,000 years, but the names used in the Great Wall construction and records of different dynasties and generations are different. Some of these different names are common to each other in the same historical period, while others are only used in a certain historical period or a certain region.