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A conservator of the Potala Palace registers ancient documents in Lhasa, capital of southwest China's Tibet Autonomous Region, March 4, 2019. (Xinhua/Purbu Zhaxi)
A conservator of the Potala Palace registers ancient documents in Lhasa, capital of southwest China's Tibet Autonomous Region, March 4, 2019. (Xinhua/Purbu Zhaxi)