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1. Oxford Dictionary

   homeland security

   • n.
     national security, especially with regard to the threat of terrorism within a country's borders

   • noun: homeland security

2. • 釋義
   • 相關詞

   n.

   名詞

   • 1. national security, especially with regard to the threat of terrorism within a country's borders Department of Homeland Security

   Department of Homeland Security

   • ph.
     the department of the US government responsible for protecting the United States and its ...

   Oxford American Dictionary

   Department of Homeland Security

   • ph.
     the department of the US government responsible for protecting the United States and its ...

   Oxford Dictionary