Kerchenite
纤磷铁矿
🗣️ 情景例句
Good idea, Jack. What do you think about the second part?
好主意，杰克，你对第二部分有什么看法？
Is it convenient to you if I come at 6 p.m.?
如果我下午6点来拜访你，方便吗？
This, however, means nothing.
但是，这没有什么关系，