英语词汇“ground alert”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	ground alert
释义	ground alert短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 n.戒备状态;进入戒备状态之信号用作名词They have put the army on the alert.他们已使军队进入戒备状态。 These networks are on the alert for warning signs that show the weakening of rock layers that can precede an earthquake.这些网络始终处于戒备状态，搜索地震前岩石可能松动的警告迹象。
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