polystyrene/ˌpɔlɪˈstaɪri:n; ˌpɑlɪ`staɪrin/ n[U]type of light firm plastic with good insulating properties, used esp for making containers 聚苯乙烯 [attrib 作定语]a polystyrene box 聚苯乙烯塑料盒.
牛津英汉双解词典