Epistolite
硅铌钛矿
🗣️ 情景例句
My girlfriend recently broke my heart.
我的女朋友最近伤了我的心。
What do you do for relaxation?
你做什么消遣？
If explosives are used, vibrations will cause the roof of the mine to collapse.
如果用炸药爆破，震动会引起矿顶塌落。