【大发神彩快三骗局下载_大发神彩快三骗局下载官网】World Post Day marked at primary school in N China's Hebei

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A teacher gives lessons about stamps to students at a primary school in Hanshan District of Handan, north China's Hebei Province, Oct. 9, 2018. The students here learned about postal knowledge through various activities on the World Post Day. (Xinhua/Wang Xiao)