A staff member shows a copy of "Bliss and Longevity", a newly-issued Lunar New Year's Greeting Special Stamp, at a postal outlet in Shijiazhuang, north China's Hebei Province, Oct. 9, 2018. China Post issued the Lunar New Year's Greeting Special Stamp"Bliss and Longevity" on Tuesday, the World Post Day. (Xinhua/Liang Zidong)