Petrographic
a. 岩相学的；岩类学的
🗣️ 情景例句
Attending school is compulsory in this country.
这国家衽的是义务教育。
Just deposit your money with us; we'll take good care of it.
请存在本银行，我们会负责保管的。
How many different models of this do you offer?
这个你们有多少种不同的型式。