Lionite
钨钼铅矿
🗣️ 情景例句
Good-bye, Robbie. Good luck.
再见 ，Robbie ，祝你好运。
We've already had a big demand for this product.
这种产品我们已有很大的需要求量。
'I suggest,' said the inspector, 'that you are not telling the truth.
“我提醒您，”探长说，“您讲的不是实话。