Children show greeting cards made to mark the World Hello Day which falls on Nov. 21 annually at a primary school in Hanshan District of Handan, north China's Hebei Province, Nov. 21, 2019. (Xinhua/Zhu Xudong)
World Hello Day marked at primary school in Hebei
Source: Xinhua| 2019-11-21 22:08:08|Editor: ZX
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