Petrographers
(petrographer 的复数) 岩相学家
🗣️ 情景例句
It's not easy, but what is?
这不容易， 但什么事又容易了？
What sort of medicine do you take?
你吃的是什么药？
and even described the way they were done up in bundles.
还说了报纸捆扎的情况。