Mallardite
[化] 白锰矾; 水锰矾; 七水锰矾
🗣️ 情景例句
I've thought about that for some time.
我已经想过一阵子了。
I can't be sure of my future plans.
我还没有明白地定下我将来的计划。
What a beautiful ship!
多漂亮的船啊！