Permian
a. 二叠纪的, 二叠纪岩的\\nn. 二叠纪(岩)
🗣️ 情景例句
that you are very impressive.
你给人们留下了深刻的印象。
I go downstairs and have my breakfast.
我下楼吃早饭。
I take it you don't agree.
这么说来，我认为你是不同意。