polystyrene
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.
🗣️ 情景例句
Are you married or single?
你结婚了还是单身?
The thief is peeping through a keyhole.
那个小偷从钥匙孔中窥视。
Indeed they can have a delightful surprise when they find something useful which they did not know they owned.