请英语好的人帮我写篇关于长城的作文，关于人文景观的，介绍长城！

The great wall winding across the northen china is a brilliant miracle created by talented ancient chinese people. In the ancient china, the dynasty which controlled the central part of china has been always molested by the northen minority ethnic groups from such as mongolia. The military strength of central government was not powerful enough that they can annihilate the ennemy. In order to defend the people at frontier against minority groups and keep the country in a stable condition The empires have decided to build a longwall which could stop the minority ethnic soldiers on the horses.Almost in every dynasty the great wall would be renovated . Today the great wall greeting our eyes with its unparalleled, magnificent and imposing silhouette is the embodiment of the diligent and ingenious chinese ancient people