But as it turns out, we know a lot more about space than we do about the underground waterways coursing through our planet, the very lifeblood of Mother Earth.
但目前的情况是， 我们对于宇宙的了解 远远超过了 我们对于地球上地下水的了解， 而这些水域和我们的星球相依相伴， 是地球母亲的命脉。