| 释义 |
DEFINITIVE EXAMPLES 权威例句〔popcorn〕A small piece, as of polystyrene, used in quantity to protect items during packaging and shipment.保护物品的小片：大量用于包装及运输中保护物品的一种小片，如聚苯乙烯美国传统〔thermoplastic〕A thermoplastic resin, such as polystyrene or polyethylene.热塑树酯：热塑树酯，如聚苯乙烯或聚乙烯美国传统 |