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1. Oxford American Dictionary

   collective security

   • IPA[kəˈlektiv səˈkyo͝orədē]

   • n.
     the cooperation of several countries in an alliance to strengthen the security of each.

   • noun: collective security

2. • 更多解釋

   collective security

   • n.
     the cooperation of several countries in an alliance to strengthen the security of each.

   Oxford Dictionary