辽阔的西藏大地，无论是藏北、山南、还是昌都和阿里地区，都散布着众多的湖泊。
O O O B-Thing I-Thing I-Thing I-Thing O O O O B-Location I-Location O B-Location I-Location O O O B-Location I-Location O B-Location I-Location I-Location I-Location O O O O O O O O B-Thing I-Thing O