Polyalkenamer
[化] 开环聚环烯烃
🗣️ 情景例句
Nice to meet you, Mr. Johnson.
很高兴见到你 Johnson先生。
I'm the oldest person in my club.
我是我的俱乐部中最老的人。
Dad, this bag is too big. We can't carry it.
爸爸，这个包太重了，我搬不动。