So, what we found is that you can use a really special colorant called, ultramarine blue.

所以我们发现可以用一种非常特殊的调色剂，深蓝色。

Their waters are keen ultramarine blue in the deepest parts, lively grass-green toward the shore shallows and around the edges of the small bergs usually floating about in them.

他们的水域在最深处呈深蓝色，靠近岸边的浅滩和通常漂浮在其中的小冰山的边缘呈活泼的草绿色。