And those microbes, the rocks you see in that slide here, well, they are actually living inside rocks and they are using the protection of the translucence of the rocks to get the good part of the U.V.
你们在图上里看到的这些岩石， 其实那些微生物正生活在岩石里， 而且它们正利用着 岩石的半透明性对它们的保护 来合理的利用紫外线，