He points to the brightest stars and describes how to use them to navigate to the Bilma oasis in the eastern desert.
他指着那些最明亮的星星，讲述怎么利用它们找到位于沙漠东部的比尔马绿洲。
2
He points to the brightest stars and describes how to use them to navigate to the Bilma oasis in the eastern desert, where they would trade Onions and garlic for salt.