Poly(vinyl fluoride)
[化] 聚氟乙烯
🗣️ 情景例句
He's unwilling to accept advice.
他不愿接受劝告。
Let me give you a little motherly advice.
让我给你一些母亲般的劝告。
I reached out to Annie's hand.
我把手伸向安妮的手。