hazardous-materialsCOCA¹²⁷⁶⁷⁵ 基本例句 un.危险物品；🌏危险品；有害物质；危险物质 The working conditions of female workers in a hazardous-materials environment are reviewed and their pay schedules compared to those of all workers in similar environments across the nation. 文章说的环境是指一种抽象的环境，不是具体的。 而此题要求的是工资在不同条件下的可比性。 chasedream