Wuzhou: From ancient tea boat waterway to new Silk Road

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China expert Mario Cavolo has lived in China for 20 years and is fascinated by its rich tea culture of Wuzhou, in south China's Guangxi Zhuang Autonomous Region. Here, he discovers how a small piece of tea leaf has become the supporting point of the Archimedes' lever that is reviving Liubao town and even the entire city.