early warning

美 
英 
  • n.预先警报
  • 网络预警;早期预警;早期警告
复数:early warnings  
early warning
n.
1.
预先警报a thing that tells you in advance that sth serious or dangerous is going to happen
an early warning of heart disease
心脏病的早期症状
an early warning system(= of enemy attack)
预警系统

例句

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