Ethynylation
炔化, 乙炔化作用
🗣️ 情景例句
I hear it from my patients.
我是从我的病人那儿听到这些的。
Would it be possible for me to have a closer look at your samples?
可以让我参观一下你们的产品陈列室吗？
Thanks. I see them now.
谢了，我现在看到了。