Scheelitine
钨铅矿
🗣️ 情景例句
The teacher flunked him in geography.
老师给他的地理打不及格。
He dies like a beast who has done no good while he lived.
生时不做好事，死了像个畜生。
What is the name of the machine?
机器的名字叫什么呢？