Lithostratigraphic
a. 岩石层位学的
🗣️ 情景例句
There are so many things to consider. There's Michelle.
要考虑的事太多了。首先是Michelle。
Who laughed a while ago?
刚才谁在笑？
Hi! Nice to meet you, Ling Feng!
很高兴见到你，。