Polyvinylene
聚乙烯撑, 聚次亚乙烯
🗣️ 情景例句
Did you watch the football game between Manchester United and Arsenal last night?
昨晚你看了曼联对阿森纳的足球比赛吗？
This mountain range has many high peaks and deep canyons.
这条山脉有许多高山峰和深峡谷。
Suddenly, I saw the Officer's face light up.
突然，我看到官员脸上露出了得意的神色。