So the movement of the giant planets have actually played an important role in the delivery of water to the inner solar system.

因此，巨行星的运动实际上在向内太阳系输送水的过程中起到了重要作用。

In a sense, it is Jupiter's outward motion through the asteroid belt that we have to thank for the delivery of water to the surface of the Earth.

从某种意义上说，多亏了木星穿过小行星带向外运动，才得以将水输送到地球表面。