Ufertite
铈铀铁钛矿
🗣️ 情景例句
Wonderful.
真精采。
He's studying his lesson.
他正在学习课程。
If we could actually see the path described by a particle,such as a sand grain in the rock,
假如我们真能看到的运动轨迹，诸如岩石中一个沙粒分子