Polyalkenamer
[化] 开环聚环烯烃
🗣️ 情景例句
The train will be stopping in five minutes.
火车将在五分钟后靠站。
I'm sorry. I was just playing football with my friends.
对不起，我只是和朋友去踢了足球。
For years we've been demanding better housing and jobs.
多年来我们一直要求改善住房和工作条件。