Passengers take a new metro line during a test run in Kunming, capital of southwest China's Yunnan Province, April 30, 2014. Two metro lines in Kunming, Rail Transit Lines 1 and 2, have been undergone a test run on Wednesday. Both lines are vertical and are joined in one station, running 42.1 kilometers from north to south. A typical one-way trip from one end to the other costs 72.5 minutes. (Xinhua/Lin Yiguang)
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