中国以长城而著名，建于2000年以前，长约6000公里，宽4~5米，高6~7米，没人知道在没有任何先导机诫的帮助的情况下，人们是怎样建造长城的，今天长城成了世界名胜，许多人来长城观光旅游。
(这里指某地的长城)
參考答案:China is well known as the Great Wall.The Great Wall has built 2000 yeas ago,it's about 6000 kilometres long,4 to 5 metres wide ,6 to 7 metres height.Nobody has known that man was how to built the Great Wall without a guide machinery's help.Today ,the Great Wall has known as world ,many people comes for traveling.
