Fluellite
[化] 氟铝石
🗣️ 情景例句
Maybe we should do it again.
也许我们该再来一次。
Today English is the international language of business and trade.
如今英语是商务和贸易的国际性语言。
Once the oxygen content of the air had risen to 25% it was ready to burn.
一旦氧气在空气中的含量达到25%，它就要燃烧。