Polyacetaldehyde
聚乙醛
🗣️ 情景例句
Hey, go to the doctor. That cough sounds bad.
嘿，去看看医生吧，听起来你咳嗽得挺厉害的。
He who would catch fish mush not mind getting wet.
欲擒龙王，就得下海。
What was the matter?
怎么啦？