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.
2019年12月六级真题（第一套）阅读 Section C
柯林斯高阶英汉双解学习词典释义
VERB
疏散;使撤离;转移
To evacuate someone means to send them to a place of safety, away from a dangerous building, town, or area.