Cyclocompounds
[建] 环状化合物
🗣️ 情景例句
In town. At the hardware store.
在镇上。在五金行里。
How far is it to the university?
它离大学多远？
Was the noise a cause of the illness, or were the complaints about noise merely a symptom?
是噪音引起了（精神）病呢，还是（精神）病的症状之一是对噪音的抱怨？