Polyyne
聚炔烃
🗣️ 情景例句
We haven't had any complaint of this kind. Is there any evidence.
我们还从未听过这样的抱怨。有什么证据呢？
The basketball player is renowned for his fast breaks.
这名篮球运动员以快著称。
Certainly, Dad.
当然可以，爸爸。