随着时间的推移，地壳板块移动，同时也移动了大陆和海底。
Over time, the tectonic plates move and shift, which moves the continents and the ocean floors too.
我们可以预测，在短期内，美洲将继续向西移动、远离欧洲大陆，而非洲和澳大利亚板块将继续向北移动。
Over the short term, we can predict that the Americas will continue to move westward, farther away from Europe, while Africa and Australia will continue to move northward.
海洋板块的岩石，玄武岩，以及覆盖其表面的沉积物被拉沉到海洋底部，充当移动大陆的传送带机制的一部分。
The ocean floor rock, basalt, along with the sediment that built up on top of it, was drawn down at the edge of an ocean as part of the conveyor-belt mechanism that moves the continents.
在地球内部它们被认为是相对固定的，而板块和大陆就在其上面移动。
They are thought to be relatively stationary within the Earth, while plates and continents move above them.
在地球内部它们被认为是相对固定的，而板块和大陆就在其上面移动。
They are thought to be relatively stationary within the Earth, while plates and continents move above them.
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