11月11日拍攝的西安城墻（無人機照片）。當(dāng)日，陜西省西安市迎來立冬以來首場降雪，白雪掩映下的古都古樸寧靜。[新華社記者 劉瀟 攝]

This aerial photo taken on Nov. 11, 2023 shows the view of snow-covered ancient city wall in Xi'an, northwest China's Shaanxi Province. Xi'an witnessed a snowfall on Saturday, the first one after traditional solar term of Lidong, which means the beginning of winter and fell on Nov. 8 this year. (Xinhua/Liu Xiao)