他负责公司的日常行政工作。

He takes care of the daily ___admin tasks in the company.

系统管理员帮我们设置了新的防火墙。

The ___admin helped us set up the new firewall.

周五下午我通常处理一些行政事务，比如整理文档和数据录入。

I usually spend Friday afternoons handling ___admin tasks like organizing files and data entry.