假如外国人和你一起去游览长城,你怎样用英语介绍长城呢?

Hey everyone:Welcome to the Great Wall of China!The Greate Wall used to be a defending wall to be against those enemies from entering into our motherland.It was first created by the Qin Dinasty by the Kindom Employer Yin-Zhen Qin and it has a history of nearly 2000 years.Though it was somehow destoryed in some parts.But nearly every dinasty in China tried its best to repair it as soon as possible.The Great Wall is 6320 kms as it's known to the public.And it just shows the wisdom as well as the talents of the traditional Chinese people.