写一篇英语作文Write Betty's postcard to her grandma from the GreatW

Dear grandma,
Today,I came to one of the seven wonders of the world---"the Great Wall".It is mounts on the Earth which Moon's astronaut sees one of few in number manual constructions.It is when the qin dynasty completes,has more than 2000 years glorious histories.I must emphasize,in the ancient times any modernization machine situation,has not constructed this Great Wall is extremely difficult.Not only to Chinese people,moreover to the world each place people,the Great Wall all is a scenic spot.China has a famous saying:Not to Great Wall non-real man.The Great Wall is Chinese people's arrogant.
I hope next time you can come with me.
Yours,
XXX