Polyvinyl fluoride
[机] 聚氟乙烯
🧩 词语组成解析
a. 聚乙烯基的
fluoride
[['fluəraid]]
n. 氟化物\\n[化] 氟化物
🗣️ 情景例句
OK. Keep those knees up.
好 ，膝盖抬高。
She is the most gracious hostess I have ever known.
她是我所见过的最和蔼的女主人。
It would never again be possible for them to lead normal lives.
他们再也无法过正常的生活。