alerting

例句：

1. 1. The police are alerting the public about the imminent threat of a hurricane.
   警方正在警告公众即将到来的飓风威胁。
2. 2. The doctor gave me an alerting message that I needed to see a specialist immediately.
   医生给我发了一条警示信息，我需要立刻去看专科医生。
3. 3. The new policy is designed to alerting employees about changes in the workplace environment.
   新政策旨在提醒员工工作环境的变化。