求翻译：长城修建的具体时间无从考证，最早出现于春秋，如楚国的方城（在今河南南阳地区）。到了战国，魏西河郡有长城，赵漳水上有长城，中山国西部有长城，燕易水有长城，齐沿泰山山脉有长城。这些长城，在战争中曾经起过很大的作用。秦始皇统一六国后，开始了大规模修筑长城。以后历代均有修建。现在看到长城大都始明朝时期修建的。是什么意思？

Great Wall built in a specific time are difficult to trace, first appeared in the Spring and Autumn, as the square Chu City (Henan Nanyang in this area). To the Warring States Period, WEI Xi River County, the Great Wall, Zhao Zhangshui on the Great Wall, Great Wall, Zhongshan west of the country, Ya

正在翻译，请等待...

The Great Wall constructs the concrete time textually researches without knowing where to begin, appears most early in Spring and Autumn Period, like Chu country's side city (in now Henan Nanyang area).To the Warring States, the Wei Siho county had the Great Wall aquatic, the Zhao Zhang has the Grea

The great wall built not at a specific time to research, first appeared in the spring and Autumn period, such as Chu Fangcheng (in today's Henan nanyangdiqu). To warring States, Wei Xihe County has great wall, Zhao Zhang water wall, Chungshan Junior high west wall, swallow water wall, aligned along

The great wall built not at a specific time to research, first appeared in the spring and Autumn period, such as Chu Fangcheng (in today's Henan nanyangdiqu). To the warring States period, Wei Xihe County there is the great wall, water on the great wall of Zhao Zhang, Zhongshan Kingdom West of the g