We have two days off, Mr. Brown. Do you have anything special in mind that you'd like to see? 我们有两天的休息时间，布朗先生，您要去参观什么非常特别的景点吗？

How about visiting the Great Wall? I heard the Great Wall is one of the Eight Wonders of the world. 参观长城怎么样？我听说长城是世界八大奇观之一。

That's a good idea. 好主意。

What's the length of the Great Wall? 长城究竟有多长？

What's the length of the Great Wall? 长城究竟有多长？

The Great Wall meanders from east to west for about 6,000 kilometers for 12000 li. 长城从东到西蜿蜒约6000公里，也就是12000里。