Polyacetylen
聚乙炔; 聚乙炔
🗣️ 情景例句
You really need to eat more; you're too skinny.
你太瘦了，真得多吃点。
Tell me thy company and I will tell thee what thou art.
把你的交友讲给我听，我会讲出你是何许人。
No! Leave her where she is.
不，别动她！