Polydicyclopentadiene
[化] 聚双环戊二烯
🗣️ 情景例句
Well, first, you have to turn your hat around like this.
首先 ，你得把你的帽子转一下 ，像这样。
What's the fare?
车费多少？
I appreciate John's helping in time.
我感谢约翰的及时帮助。