单词：polystyrene foam
polystyrene foam的用法和样例：
例句
- Foam plastics are applied to protect the goods against press.泡沫塑料用来防止挤压。
- I attached two polystyrene foams to adjust the height.我贴了两块泡沫塑料来调整高度以适应飞机的大小。
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