evacuation/ɪˌvækjuˈeɪʃn; ɪˌvækjʊ`eʃən/ n1 [U] act of evacuating or state of being evacuated 疏散; 撤离; 排空 the evacuation of thousands of people after a flood 洪水过後成千上万人离乡背井 the evacuation of a town 城市的撤空.2 [C] instance of this 疏散; 撤离; 排空.
牛津英汉双解词典