Corvusite
水复钒矿
🗣️ 情景例句
Richard is right.
Richard是对的。
Well, when exactly?
哦，具体什么时候？
There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.
泉水只能满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。