Permian
a. 二叠纪的, 二叠纪岩的\\nn. 二叠纪(岩)
🗣️ 情景例句
Where is your family from?
祖籍在哪里？
You think I was born yesterday!
我没那么笨！又不是三岁小孩。
I don't know. What about this blue one?
我不清楚，这个蓝的怎么样？