未经许可进入这个区域是严格禁止的。

Entering this area without ___unauthorized access is strictly prohibited.

员工不得使用未经授权的软件。

Employees are not allowed to use ___unauthorised software.

未经许可进入这栋大楼是未经授权且违法的。

Entering this building without permission is ___unauthorised and illegal.