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security system
n. 安全系统
例句与用法：
The bank's much-vaunted security system failed completely.
这家银行大肆吹嘘的保安设施完全无济于事。
security system1.■国家(或国际)安全系统(或保安系统)
名词 security system:
(computing) a system that enforces boundaries between computer networks
an electrical device that sets off an alarm when someone tries to break in
同义词：security measure, security