Tra từ high-security - Từ điển Oxford Advanced Learner 8th

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Từ điển Oxford Advanced Learner 8th

high-security ˌhigh-seˈcurity [high-security] BrE NAmE adjective only before noun 1. (of buildings and places)very carefully locked and guarded •a high-security prison 2. (of prisoners)kept in a prison that is very carefully locked and guarded