6 年前
视频简介
从循环利用到能源生产，这部纪录片探讨了五大洲为营造一个水资源永续利用的未来而提出的创新方案。。In the heart of the Jordanian desert, the ancient city of Petra is full of mysteries. How was this architectural prowess achieved more than 2,000 years ago? © National Geographic。
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