Acetylenylbenzene
乙炔基苯
🗣️ 情景例句
Where was that?
在什么地方？
It isn't much.
这是微不足道的。
The Ombudsman immediately wrote to the Chief of Police in the district asking him to send a record of the case.
司法特派员立即写信给当地警察局长，请他寄送与此事有关的材料。