Richterite
碱镁闪石
🗣️ 情景例句
Are all these goods made in your factory?
所有这些货物都是贵厂生产的吗？
It's an honor to be speaking to you today.
今天跟你们说话至感荣幸。
This letter's full of mistakes. I want you to type it again.
这封信里错误百出。我要你重打一遍。