The Great Wall of China is the longest wall in the world.It runs from west to east,over mountains,though_valleys and finally _into_the sea.
The Great Wall has a history over two _thousand years.People _began_ to build the Wall in the Spring and Autumn Period in Chinese history.
The Great Wall is more than 6,000 kilometers long,6-7 meters _wide_ and 4-5 meters high.In most places it is wide _enough_ for 5 horses or ten men to stand side by side.
Every year many people find great pleasure in _visiting_the wall .But some sections of the wall are _worn___out.People recently began to protect and repair the Great Wall
其中拼写错误均已改正!