Massive segments or plates of the crust move over the mantle in the process of continental drift.

大陆漂移雕塑了地壳的外观，使现在大陆形成。

youdao

Massive segments or plates of the crust move over the mantle in the process of continental drift.

大陆漂移雕塑了地壳的外观，使现在大陆形成。

youdao