A staff member introduces a set of commemorative stamps to young students at a postal office in Lanzhou, capital of northwest China's Gansu Province, Jan. 29, 2013. A group of young students visited a postal office in Lanzhou, learning as well as experiencing the knowledge and skills related to the postal works here on Tuesday. (Xinhua/Chen Bin)
Deng Hongyan, a postal staff member, teaches young students the way of using envelopes and stamps, in a postal office in Lanzhou, capital of northwest China's Gansu Province, Jan. 29, 2013. A group of young students visited a postal office in Lanzhou, learning as well as experiencing the knowledge and skills related to the postal works here on Tuesday. (Xinhua/Chen Bin)
Young students learn to pack the mails at a postal office in Lanzhou, capital of northwest China's Gansu Province, Jan. 29, 2013. A group of young students visited a postal office in Lanzhou, learning as well as experiencing the knowledge and skills related to the postal works here on Tuesday. (Xinhua/Chen Bin)
Young students fill in the post cards in a postal office in Lanzhou, capital of northwest China's Gansu Province, Jan. 29, 2013. A group of young students visited a postal office in Lanzhou, learning as well as experiencing the knowledge and skills related to the postal works here on Tuesday. (Xinhua/Chen Bin)
