西藏的天空可以用英语表示为 "the sky in Tibet" 或者 "the Tibetan sky."
"Tibet" 是西藏地区的英文名称，来源于希腊语 "Tibetos"，意思是 "草原" 或 "草地"。
以下是一些英文例句及其中文翻译：
The sky in Tibet is known for its deep blue color. (西藏的天空以其深蓝色而闻名。)
The Tibetan sky is so clear and bright that you can see the stars very clearly at night. (西藏的天空如此清晰明亮，以至于晚上你可以清晰地看到星星。)
The Tibetan sky is filled with the beauty of the natural landscape. (西藏的天空充满了自然景观的美丽。)
The Tibetan sky is a wonderful place to watch the sunset. (西藏的天空是观看日落的绝佳场所。)