C2 noun #138,904 最常用

the highest level of alert when an attack by the enemy seems imminent (or more generally a state of alert resulting from imminent danger)

red alert 30秒了解

  • (noun) the highest level of alert when an attack by the enemy seems imminent (or more generally a state of alert resulting from imminent danger)

Meanings

  1. 1
    noun the highest level of alert when an attack by the enemy seems imminent (or more generally a state of alert resulting from imminent danger)

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