emergency alert systems
📖 释义
-
紧急警报系统; 机构通知系统
💬 例句
-
Authorities activated the emergency alert systems to warn residents about the approaching hurricane.
当局启动了紧急警报系统以警告居民即将到来的飓风。
-
Parents were notified through emergency alert systems and many rushed to collect their children.
家长通过紧急警报系统收到通知,许多人急忙去接孩子。