Poly(vinyl chloride)
[化] 聚氯乙烯
🗣️ 情景例句
Oh, let me think for a minute.
哦，让我想一下。
Who told you?
谁告诉你的？
What?Speak up. Penny.I'm afraid I can't hear you.
什么？彭妮，大声一点。我可听不见你念的。