紧急令

例句：

1. 1.The doctor advised us to take immediate action in case of an emergency.
   医生建议我们在紧急情况下立即采取行动。
2. 2. In the event of a fire, it is important to follow the evacuation plan.
   发生火灾时，遵循疏散计划是很重要的。
3. 3. The sudden emergence of the virus caused widespread panic.
   这种病毒的突然出现引起了广泛的恐慌。