Polynorbornene
[化] 聚降冰片烯
🗣️ 情景例句
After you.
请先走。
No, it isn't. Yes, it is.
不，它不是。 是的，它是。
I hope this will lead to further business between us.
我希望这次交易将使我们之间的贸易得到进一步发展。