1. He is a renowned Arabist, fluent in both spoken and written Arabic.
他是一位著名的阿拉伯学者，精通口语和书面阿拉伯语。

2. Many Arabists dedicate their careers to bridging the gap between the Arab world and the West.
许多阿拉伯学者致力于弥合阿拉伯世界与西方之间的鸿沟。