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Photo taken on Sept. 14, 2019 shows the nuclear-powered icebreaker Lenin in the Arctic Circle port city of Murmansk, Russia. (Xinhua/Bai Xueqi)

Photo taken on Sept. 14, 2019 shows the nuclear-powered icebreaker Lenin in the Arctic Circle port city of Murmansk, Russia. (Xinhua/Bai Xueqi)