A woman rides a tricycle loaded up with many polystyrene foam boxes.

一名妇女骑着一辆载满塑料泡沫箱的三轮车。

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Thirty years ago his company was hired by McDonalds to make the foam boxes for Big Macs.

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The company vacuum packs its meat, then ships it in ice-pack-filled foam coolers in corrugated boxes.

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