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Polystyrene is better known as Styrofoam, wads of which can be found on seashores and floating out to sea. 人們更多的時候稱聚苯乙烯爲(wèi)泡沫塑料，你可以在海邊發(fā)現(xiàn)大量的泡沫塑料，它們會被沖進大海中。