A boy draws with a 3D printing pen in the Chengguan District of Lanzhou, capital of northwest China's Gansu Province, Jan. 13, 2018. Children in Lanzhou took part in creative education class during their winter vacation. (Xinhua/Fan Peishen)
Children spend colorful winter vacation in NW China
Source: Xinhua| 2018-01-14 13:17:16|Editor: Liangyu
