Chevkinite
硅钛酸铈钇矿
🗣️ 情景例句
And in a short campaign
而且这一场短暂的竞选
He wants to change his appointment from Monday to Wednesday.
他想要把他的约会从星期一改到星期三。
Look at the rain! It's heavy, isn't it?
瞧这雨！下这么大，是吧？