Polyyne
聚炔烃
🗣️ 情景例句
Well, why don't you tell us about that, Michelle?
那好，能否给我们讲一讲 Michelle？
No one can match us so far as quality is concerned.
就质量而言，没有任何厂家能和我们相比。
Macaroni has been grown in this area for over six hundred years.
通心粉在这个地区已经种植了600多年了。