Metafiltration
层滤
🗣️ 情景例句
Yup. I graduated in 1937.
是的，我是一九三七年毕业的。
Thank you for your favour.
谢谢你的爱护。
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？