unregistered [ʌn'redʒɪstəd]

例句:

• They were charged with acting as unregistered foreign agents.
  来自VOA
• He also allegedly provided an unregistered handgun.
  来自WSJ
• In other words, unregistered sites will become unavailable to users in China.
  换句话说, 不在工信部登记的国外网站,中国用户就不能再访问.
  
• Any subscriber flagged as unregistered will not be notified.
  所有被标记为未注册的关注者都不会被通知.
  
• All the windows are automatically unregistered in their destructors.
  所有窗口自动在它们的析构函数中去注册.
  
• When they are, they're usually stolen or unregistered.
  来自WSJ