Potamobenthos
河流的底栖有机体
🗣️ 情景例句
because the doctors and nurses are so busy?
因为医生和护士们都非常忙？
He's the youngest in the family.
他是一家中最小的。
Yes, very hard. Years of hard work, very little food, only a small cold room to live in and never a moment's rest.
是的，境况很不好。多年劳累，食不果腹，斗室寒舍，从无休息。