Plattnerite
块黑铅矿
🗣️ 情景例句
OK. You go out and get a drink of water at the fountain.
好。你出去在饮水机那儿喝点水吧。
who did George marry?
乔治结婚了吗？
I can't remember. Did I put them under the table?
我想不起来了。 放在桌子下面了吗？