Cycloolefine
[化] 环烯烃
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
I'll pick up ticket at the airport counter.
我会在机场柜台拿机票。
Well, of course, I know that gentlemen like you carry only large notes.
当然喽，我知道像你这样的先生是只带大票子的。