foam lunch box
苯乙烯是重要的化工原料，可以生产多种产品，其中一次性泡沫包装和饭盒用途较大并存在着较大的争议。
Styrene is an important material for many chemical productions in industry. Foamed polystyrene has been used to produce disposable table ware, and there are also some arguments about its USES.
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