Chalcolamprite
氟硅铌钠矿
🗣️ 情景例句
That idea would never work in practice.
那种设想永远实现不了。
He's a student,too.
他也是学生。
Just a minute. I'll see if I'm free. No, I'm not. I've already got something on that evening.
等一会。我看看是否有空。不，我没空。我那天晚上已经有了安排。