Wittingite
多水硅锰矿
🗣️ 情景例句
Wait till I tell my family about this!
我告诉我家人这件事的时候有的瞧了！
For those of you that didn't hear it, the question was how soon we could expect the product to be on sale.
你们并未听说过，问题是产品多快能上市。
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，