Polyacetaldehyde
聚乙醛
🗣️ 情景例句
I can't wait to get back home and see everyone again.
我迫不及待地想回国看看。
You are saying you turn on the computer and see nothing?
你的意思是你把计算机打开后什么也看不见？
I have always regarded the country as something you look at through a train window, or something you occasional visit during the weekend.
总认为乡村是透过火车车窗看到的那个样了，或偶尔周末去游玩一下景象。