坎兒井與萬里長城、京杭大運河並稱為中國古代三大工程。
1. In China’s ‘underground Great Wall,’ tunnels go dry and Uyghurs fear for their culture
2. 坎兒井
2015年新疆
坎兒井與萬里長城、京杭大運河並稱為中國古代三大工程。
1. In China’s ‘underground Great Wall,’ tunnels go dry and Uyghurs fear for their culture
2. 坎兒井
2015年新疆