Chu Yongming, 58, teaches Tujia language to students in a class in Baifusi primary school in Laifeng county, Enshi Tujia and Miao autonomous prefecture in Central China's Hubei province, Oct 20, 2011. [Photo/Xinhua]
Chu Yongming sorts the materials of Tujia language in Laifeng county, Enshi Tujia and Miao autonomous prefecture in Central China's Hubei province, Oct 20, 2011. [Photo/Xinhua]