Agnesite
碳铋矿
🗣️ 情景例句
Now, how's the Stewart family?
那么， Stewart全家人都好吗？
Poverty on an old man's back is a heavy burden.
老而贫穷，负担沈重。
We'll have to get this contract typed as soon as possible.
我们得尽快把契约书打出来。