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English definition of “red alert”

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red alert

noun [C] uk   us  
(the state of being ready to deal with) a sudden dangerous situation: The army was on red alert against the possibility of an attack.
Translations of “red alert”
in Chinese (Traditional) 緊急戒備狀態, 緊急警報…
in Chinese (Simplified) 紧急戒备状态, 紧急警报…
(Definition of red alert from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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