Ragstone
质地粗糙的岩石
🗣️ 情景例句
Good night, Dad.
晚安， 爸爸。
Do you ever play basketball after school?
你曾经在放学后打篮球吗？
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？