an obstacle to the spread of fire 防火带,防火障 a fire-resistant door designed to be a firebreak. 设计来作为防火障的防火门。 a firebreak against the spread of revolution from Russia. 防止革命从俄罗斯蔓延的屏障。 ■a strip of open space in a forest or other area of dense vegetation (森林等植被稠密区中的)狭长空地