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pol.y.sty.reneHpBl7I5staIE7ri:n, $.pB:7lI5staI-n [U]Am usually trademark Sty.ro.foam a light usually white plastic used esp. for putting around delicate objects inside containers to protect them from damage, or for putting around something to prevent it from losing heat聚苯乙烯The computers arrived in large boxes, packed tightly in polystyrene.计算机是用聚苯乙烯膜包裹，放在大盒子里运到的。polystyrene cups聚苯乙烯杯When we moved into the house, the ceiling was covered with horrible polystyrene insulation tiles.当我们搬进这座房子时，天花板上覆着讨厌的聚苯乙烯隔热瓦。
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