برزنتشن عن سور الصين العظيم بالعربي والانجليزي | تعلم ...
The Great Wall cuts a vast area of 2,400 km 2, and the wall is mainly made up of a large collection of hard stone and clay. The wall contains a large number of guard towers, one of which is located in every 200 meters of its length, and helped the brick-clad walls in the eastern parts of the country to maintain the fence and prevent collapse, while many of its parts disappeared in the southern ...