MENGZI, May 27, 2016-- Driver Wang Li operates an experimental tram in Mengzi, Hani-Yi Autonomous Prefecture of Honghe in southwest China's Yunnan Province, May 27, 2016. With an investment of 6.619 billion yuan (about 1.009 billion US dollars), 4 lines of trams covering 62 kilometers are under construction and expected to be in experimental operation in 2017. (Xinhua/Zhou Lei)
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