We've seen places where water soaked the rocks beneath the surface, we've seen places where water came to surface and flowed, over the Martian surface creating little ripples that are still preserved in the rocks billions of years later.
我们看到了水地表下被水浸泡过的岩石,看到了水曾在其表面流淌过的地方,在整个火星表面,制造了小小的波纹,仍然保存在岩石里长达数十亿年。