Polyacetylen
聚乙炔; 聚乙炔
🗣️ 情景例句
Oh, thanks, Harry.
噢， 谢谢你 ，Harry。
Do you have the tickets, or not?
你到底有没有买票？
Well, have you considered using the lab in your free class? I suggest you ask Mr. Wu.
噢，你是否考虑过在自习课上利用这个实验室？我建议你问问吴先生。