Paleogeographical
a. 古地理学的
🗣️ 情景例句
we need to put together volunteers
我们需要募集义工
They have different hopes.
他们有各自不同的愿望。
it is quite reasonable to regard the sea floor as the basic form of the crust of the earth,
因此完全有理由把海床看作地壳的基本模壳，