1. The demotics script was commonly used for administrative purposes in ancient Egypt.
（埃及古代常用的埃及文书写体系是用于行政目的的。）
2. The decipherment of demotics texts has greatly contributed to our understanding of ancient Egyptian society.
（对埃及古代文书的解读对我们对古埃及社会的理解做出了巨大贡献。）