Diethylacetylene
[化] 二乙基乙炔
🗣️ 情景例句
I have an autographed one in my office.
在我办公室里有一本签了名的。
Your English is very good.
你的英语很好。
Professors from the university in Paris would be coming down by train.
巴黎那些大学的教授们将会坐火车来这里。