It was then the capital of a province ( called " Mauretania Prima " ) under Byzantine rule and was still a place of strategic importance .
Back then , it was the capital of a province ( called " Mauretania Prima " ) under Byzantine rule and was still a place of strategic importance .
Back then , it was the capital of a province ( called " Mauretania Prima " ) under Byzantine rule and was still a place of strategic importance .
写出该句子的释义版本: It was then the capital of a province ( called " Mauretania Prima " ) under Byzantine rule and was still a place of strategic importance . 输出: