Polydiene
聚二烯
🗣️ 情景例句
This is a beautiful wedding.
这婚礼办的真漂亮。
Do you know Mary?
你认识玛丽吗？
Before he died, he was honoured in a number of ways for his contributions to the film industry.
在他逝世之前，由于在电影业上所作的贡献，人们以不同方式授予他许多荣誉。