Lithostratigraphy
n. 岩石层位学
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
The walls are three inches thick.
这墙3英寸厚。
Please remember this is not to be taken as final.
请记得这不是最后的回答。