Semischist
[地质]次片岩
🗣️ 情景例句
Richard! Welcome! Good luck tonight! Richard
欢迎 祝你今天晚上好运
Well, thank you for coming.
唷，谢谢你的光临。
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？