Zinnwaldite
铁锂云母
🗣️ 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？
Beware of a silent dog and still water.
警惕无声之狗会咬人，平静之水会覆舟。
Mum slept almost the whole way.
妈妈在整个途中几乎都在睡觉。