Ilsemannite
蓝钼矿
🗣️ 情景例句
I understand your feelings about it, Richard.
我了解你对这种事的心情， Richard。
Thoroughly to teach another is the best way to learn for yourself.
教学相长。
It's nothing serious.You'd better have a good rest.
（病情）不太严重。你最好好好休息一下。