用下面的中文写一篇英语文章介绍长城（带翻译）
长城是我国古代劳动人民创造的奇迹，它有6000多千米，是世界上最长的墙，宽 4.5米，能够通过4匹马和10个人并肩走过，世界七大奇迹之一。自战国时期开始，修筑长城一直是一项大工程。据记载，秦王使用了近百万劳动力修筑长城，占全国人口的1/20！当时没有任何机械，全部劳动都得靠人力，而工作环境又是崇山峻岭、峭壁深壑。可以想见，没有大量的人群进行艰苦的劳动，是无法完成这项巨大工程的。
Great Wall is a miracle created by the working people in ancient China, it has 6000duoqianmi, it is the longest wall in the world, 4.5 meters wide, can walk side by side through the 4 horses and 10 people, one of the seven wonders of the world.Starts from the warring States period, construction of the great wall is a big job.According to the record, the King of Qin uses million labor built the great wall, population, one-twentieth!There were no machines, all have to rely on human labor, and work environment is the mountains and cliffs, melancholy.You can imagine that without a lot of hard work the crowd, is unable to complete this enormous project.
