Polyalkenamer
[化] 开环聚环烯烃
🗣️ 情景例句
About what?
关于什么
When the clock strikes twelve at midnight.
当午夜十二点的钟声敲响时。
No, not very. You need a driving permit. Have you got one?
不，不很贵。你需要一个驾驶执照。你有没有？