热点和它们的火山痕迹是标志板块移动的里程碑。
The hot spots and their volcanic trails are milestones that mark the passage of the plates.
另一种可能是下沉的板块冷却了邻近的地幔，并产生对流，使板块移动。
Another possibility is that the sinking plate cools the neighboring mantle and produces convection currents that move the plates.
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.
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