Zinnwaldite
铁锂云母
🗣️ 情景例句
Kids today have too much freedom, it's not like the old days.
现在的小孩太自由了，不像以前。
The contract will be sent to you by air mail for your signature.
合同会航邮给你们签字。
We did, 4 - 2.
我们，4比2。