McDonald's finally bowed to consumer pressure and announced that it would no longer use styrofoam boxes to package its hamburgers.麦当劳最后屈服于消费者的压力，宣布说他们将不再使用聚苯乙烯泡沫塑料盒包装汉堡包。Does styrofoam burn?聚苯乙烯烧得起来吗?The ceiling was covered with polystyrene insulation tiles.天花板上覆盖着聚苯乙烯隔热瓦。