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Passengers get off the airplane and walk into the terminal of the Ali Kunsha Airport, Ali Prefecture, southwest China's Tibet Autonomous Region, May 8, 2018. (Xinhuanet/Xue Zhen)

Passengers get off the airplane and walk into the terminal of the Ali Kunsha Airport, Ali Prefecture, southwest China's Tibet Autonomous Region, May 8, 2018. (Xinhuanet/Xue Zhen)