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
Students attend a lesson on cabin fire emergency during an aviation-themed summer camp for primary and middle school students in Kunming, southwest China's Yunnan Province, July 17, 2019. (Xinhua/Qin Qing)
Students attend a lesson on cabin fire emergency during an aviation-themed summer camp for primary and middle school students in Kunming, southwest China's Yunnan Province, July 17, 2019. (Xinhua/Qin Qing)