Jackymovite
铜硅镁铀矿
🗣️ 情景例句
It's about my grandfather.
是关于我爷爷。
East or west, home is best.
在家千日好，出门时时难。
Before you leave the lab, make sure the electricity is turned off and the windows are shut.
你们离开实验室前，务必要关上电源，关好窗户。