Mcgovernite
红砷硅锰矿
🗣️ 情景例句
Thank you, Dr. Stewart.
谢谢你，Stewart大夫。
The boss is waiting in his office for us to come and explain why we failed to finish this work on time.
老板在他的办公室里等着我们前去说明未能按期完成这个工作的理由。
How old are you?
你多大啦？