Ebelmenite
钾硬锰矿
🗣️ 情景例句
Very good. But, unless I miss my guess, you should say something about your family, too.
非常好，但是我除非我想错了，不然你应该谈谈你的家庭。
No, it isn't. Yes, it is.
不，它不是。 是的，它是。
Two factors weigh heavily against the effectiveness of scientific research in industry.
两个因素严重地影响工业里科学研究的效果：