Polyfoam
泡沫塑料
🗣️ 情景例句
Harvey, how are you?
你好吗，Harvey？
Tell us about your post-purchase servicing.
告诉我们有关你们售后服务的情况。
On the third lap, the Class 3 and Class 1 runners both ran very fast.
在跑第三圈时，3班和1班的运动员都跑得非常快。