4这句话怎么翻译啊？

来源：百度知道 编辑：UC知道 时间：2024/09/21 05:37:36
It could be argued that the long solitude of the bacteria was simply a necessary precursor to the eventual appearance of animal life on Earth. Perhaps it took this long---and will take a comparable length of time on other inhabited planets--- for bacterial photosynthesis to produce the quantities of atmospheric oxygen required by more complex forms of life.

可以说，长期孤独的细菌只是一个必要的前奏，最终的外观动物地球上的生命。也许它了---这漫长的，并会采取比较长的时间对其他有人居住的行星---细菌的光合作用产生大量的大气氧所需要的更复杂的生命形式。