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Members of Blue Sky Rescue take part in a rescue drill to mark the Maritime Day of China on the Haihe River in north China's Tianjin, July 11, 2019. The Maritime Day of China falls on July 11 every year. (Xinhua/Yue Yuewei)
Members of Blue Sky Rescue take part in a rescue drill to mark the Maritime Day of China on the Haihe River in north China's Tianjin, July 11, 2019. The Maritime Day of China falls on July 11 every year. (Xinhua/Yue Yuewei)