Polyalkenamer
[化] 开环聚环烯烃
🗣️ 情景例句
He's a terrific doctor, Mom.
爸爸是个了不起的医生， 妈妈。
His thinking is behind the times.
他的想法赶不上时代。
What kind of price did you have in mind?
你说多少呢？