1、The Great Wall of China is one of the greatest wonders of the world.It is about 4000 miles long.中国长城是世界上最伟大的奇观之一，大约有4000英里长。

2.The Great Wall of China is called the \"Ten-thousand-Ii Great Wall\" in Chinese.中国长城被称为“万里长城”。

3.The Great Wall has a history of over twenty centuries.长城有两千多年的历史。（这里的century是“世纪”的意思）