英语语法分析

As for the retired uniform service men, they should immediately reregister themselves as normal voters.

至于已退休的公务人员，他们应该立即重新注册为普通选民。

Ideally, the external user should not have to reregister or even be aware that a new system was managing the authentication behind the scenes.

理想情况下，外部用户不应必须注册，甚至不应注意到是新系统在后台管理身份验证。