但有啲太陽系嘅星球可能有大量液態水 甚至多過地球 但啲水都係困喺冰層底下 所以好難接近 ， 好難用到 亦都令到我哋好難探測 冰層下面有冇生命
But some planets in the solar system may have a lot of liquid water, even more than the Earth, but the water is still trapped under the ice, so it's hard to access, it's hard to use, and it's hard for us to detect whether there's life under the ice