Biacetylene
[化] 联乙炔
🗣️ 情景例句
Will he be OK, Dad?
他会没事吗， 爸爸？
In my opinion,that's an excellent idea.
按照我的意见,那是一个极好的想法。
But he has not promised to give you any of his blood.
但是他并没有答应给你他身上的任何一滴血。