Petrographical
a. 岩相学的, 岩类学的
🗣️ 情景例句
What's the schedule today?
今天的工作是怎么安排的？
You can leave the cooking to me.
做饭的事你尽可以交给我。
There are one hundred thousand million stars in our own Milky Way alone,
仅我们的银河系就有1000亿颗恒星，