To prevent that event from becoming a catastrophe, first responders will join members of the public in rehearsals that involve communication, evacuation, search and rescue, and other scenarios.
为了防止灾难的发生，急救人员将和公众一起演练，包括通讯、疏散、搜救和其他场景。
2
First responders and health care workers.
开始有反应者和卫生工作者。
3
The shields and vests would be used by first responders.