This suggests that Earth's water may have come from inside, driven to the surface to form the oceans, by geological activity.
这表明，地球上的水可能来自内部，由于地质活动，被带到表面形成海洋。
2
The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.