Ethynation
乙炔化
🗣️ 情景例句
Let's have a talk about it in advance.
我们事先商量一下。
Would you mind getting together sometime?
你可以找个时间大家一起聚聚吗？
I'm afraid that won't be possible,much as we'd like to.
尽管我们很想这样做，但恐怕不行了。