Gaebhardite
铬云母
🗣️ 情景例句
let me give you some additional thoughts and ideas I have.
让我提出一些另外的想法。
Politeness costs nothing and gains everything.
礼貌不费分文而可赢得一切。
How would you go to Beijing, by air or by train?
你怎样去北京，是乘飞机还是坐火车？