导游介绍长城的英文开场白怎么写呀

Hello everyone!This is the great wall.China is famous for it.A lot of foreign people like to climb it.China is a historical country.And The Great Wall is a historical attraction.
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The Great Wall of China,also known in China as the Great Wall of 10,000,is an ancient Chinese fortification built from the end of the 14th century until the beginning of the 17th century,during the Ming Dynasty,in order to protect China from raids by the Mongols and Turkic tribes.It was preceded by several walls built since the 3rd century BC against the raids of nomadic tribes coming from areas now in modern day * and Manchuria.The Wall stretches over a formidable 6,350 km (3,946 miles),from Shanhai Pass on the Bohai Gulf in the east,at the limit between China proper and Manchuria,to Lop Nur in the southeastern portion of * Uygur Autonomous Region.
The first major wall was built during the reign of the First Emperor,the main emperor of the short-lived Qin dynasty.This wall was not constructed as a single endeavor,but rather was created by the joining of several regional walls built by the Warring States.It was located much further north than the current Great Wall,and very little remains of it.A defensive wall on the northern border was built and maintained by several dynasties at different times in Chinese history.The Great Wall that can still be seen today was built during the Ming Dynasty,on a much larger scale and with longer lasting materials (solid stone used for the sides and the top of the Wall) than any wall that had been built before.The primary purpose of the wall was not to keep out people,who could scale the wall,but to insure that semi-nomadic people on the outside of the wall could not cross with their horses or return easily with stolen property.
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Why are you spread your wings and visit the Great wall?
分给多点吧!好歹我写了,这是本人的文章（除中间那段）