Douglasite
[矿]绿钾铁盐
🗣️ 情景例句
To the patients in the ward?
读给病房里的病人？
Feed by measure and defy physician.
饮食有节制，医生无用处。
to work or worry about trifling things at the weekend.
在周末再让他们为琐事而动脑子和忧虑。