Gotzenite
氟硅钙钛矿
🗣️ 情景例句
We have 5 international patents which we are ready to sell.
我们有五项国际专利可以出售。
I'm going to send him a new one.
我正要送给他一个新的。
What shall we do today? The weather's not very good.
我们今天该做什么呢？天气很不好。