the process of moving people from a place of danger to a safer place （把人从危险的地方）疏散，转移，撤离 the emergency evacuation of thousands of people after the earthquake 地震后数千人的紧急疏散
the act of emptying a building or other place of people because it is not safe for them to stay there Officials ordered the evacuation of the Florida Keys as the tropical storm approached. 随着热带风暴的临近，官员们下令疏散佛罗里达群岛。