preparedness level

• 警戒状态

preparedness level的用法和样例：

例句

1. The other half of the brain stays awake at a low level of alertness.
   另一半大脑在低水平警戒状态下保持清醒。
2. In response to that announcement Tuesday, South Korea said it has strengthened its security level and alert status.
   做为北韩宣布的回应，南韩星期二说提升自己的安全级别和警戒状态。