Polianite
黝锰矿; 软锰矿
🗣️ 情景例句
Can you stop by for one minute?
你能否过来坐坐？
We continued to struggle up the steep slope of the mountain.
我们为了攀登山的陡坡，不断地倍尝辛劳。
Then why do you want to sell it?
那么，您为什么要卖掉它呢？