学校必须获得家长的书面许可才能组织校外活动。

The school needs parents' written ___permissions to organize off-campus activities.

你需要管理员权限才能更改这些系统设置。

You need administrator ___permissions to change these system settings.

你需要申请特殊许可才能在这个区域拍摄照片。

You need to apply for special ___permissions to take photos in this area.