When introducing the Great Wall in English, here are some appropriate expressions.

The Great Wall is one of the world's heritages. It started in the Qin Dynasty and has a total length of over thirteen thousand li, thus it is called the Great Wall.

It winds between the mountains, like a huge dragon. The wall was built with huge stones and bricks. The top of the wall is paved with square bricks.

Every 300 meters along the Great Wall, there is a square ChengTai, which was used for stationing troops and defending in wars.

The Great Wall has many beautiful legends. For example, Meng Jiangnu's story shows the hardship of building the Great Wall. It was built at the cost of countless lives.

The Great Wall is not only a wonder of architecture but also a symbol of the Chinese nation and its culture. Remember to describe its magnificence and historical significance accurately when introducing it in English.