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Aerial photo taken on Jan. 7, 2018 shows the snow-covered Yongningmen Gate in Xi'an, capital of northwest China's Shaanxi Province. After days of rain and snow, Xi'an greeted sunny weather on Sunday. (Xinhua/Liu Xiao)
Aerial photo taken on Jan. 7, 2018 shows the snow-covered Yongningmen Gate in Xi'an, capital of northwest China's Shaanxi Province. After days of rain and snow, Xi'an greeted sunny weather on Sunday. (Xinhua/Liu Xiao)