Poly(vinyl fluoride)
[化] 聚氟乙烯
🗣️ 情景例句
Yes, I think that's what we stipulated.
对呀，我想那是我们所订定的。
Who is speaking?I don't recognize your voice.
阁下是那一位？我听不出你的声音。
2 Which subjects do you like reading about in newspapers, magazines and books?
2。你喜欢读报纸、杂志和书籍里的哪些学科方面的内容？