Ethynylene
乙炔撑, 次乙炔基
🔁 扩展释义
【化】 亚乙炔基
🗣️ 情景例句
on the telephone for me, please.
请替我拨电话。
What's done can't be undone.
无可挽回。 泼水难收？
Mathilde! I didn't know. I'm sorry. But what happened?
玛蒂尔德！我还不知道这些情况哩。我真难过。但是，这是怎么回事呢？