Aerial view of Karub District in Qamdo, Tibet

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Aerial photo taken on Feb. 17, 2021 shows a view of the Karub District in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

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Aerial photo taken on Feb. 17, 2021 shows a view of the Karub District in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

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Aerial photo taken on Feb. 17, 2021 shows a view of the Karub District in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

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Aerial photo taken on Feb. 17, 2021 shows a view of Lancang River converged by Zaqu River and Ngomqu River in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)

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Aerial photo taken on Feb. 17, 2021 shows a view of the Karub District in Qamdo, southwest China's Tibet Autonomous Region. (Xinhua/Sun Fei)