Lithospheric
a. 岩石圈的
🗣️ 情景例句
My parents expect nothing but high marks.
我父母就希望我考高分。
What we are ignorant of is immense.
我们不知道的东西多得不可胜数。
What happened before printing was invented?
印刷术发明以前是怎么一回事？