Photo shows people of different ethnic groups watching cultural performances of the Serfs Emancipation Day in Lhasa, capital of southwest China`s Tibet Autonomous Region. [File photo]

Photo shows children of a kindergarten playing happily in Tunggar Town, Nang County, Nyingchi City, southwest China`s Tibet Autonomous Region. [File photo]

Photo shows people from different ethnic groups making dumplings together to welcome the Spring Festival and Tibetan New Year in Gyirai Community of Chengguan District, Lhasa City, capital of southwest China`s Tibet Autonomous Region. [File photo]

Photo shows workers of a breeding base feeding fodders to cashmere goats in Nyima County, Nagqu City, southwest China`s Tibet Autonomous Region. [File photo]

Photo shows workers displaying innovative products of a local company named Zhuo Fanlin in southwest China`s Tibet Autonomous Region. [File photo]

Photo shows the construction site of the bridge project in the middle section of Xigaze Highway. [File photo]

Photo shows a panoramic view of Lhasa, capital of southwest China`s Tibet Autonomous Region. [File photo]