How did the Chinese built the Great Wall without m( )machine

How did the Chinese built the Great Wall without m( )machine How did the Chinese build the Great Wall without m___ machin Chinese people have built a new Great Green wall acorss the HOW THE GREAT PYRAMID WAS BUILT怎么样 A:How did the Chinese people do the work to build the wall?B Chinese people ____(建造) the Great Wall, China built the Great Wall __the northern part ___the countr when did they visit the great wall? How long is the Great Wall how old is the Great Wall? how about___(visit)the great wall?原因 The Great Wall shows the __________of the Chinese people.(wi