1·And that, Lane and Martin conclude, may well explain why complex life — eukaryotes — only evolved once in all of Earth's history.
莱恩和马丁总结而这很可能解释为什么复杂的生命——真核生物——在地球的历史上仅进化了一次。
2·Mitochondria give eukaryotes four or five orders of magnitude more energy per gene, and that enabled them to tunnel straight through the walls of the chasm.
线粒体给予真核生物每个基因四或者五个数量级多的能源，这使他们能够穿过鸿沟的墙壁，打开直通道。
3·Archaeans have cell membranes that are completely different from both bacteria and eukaryotes.
古生菌还具有完全与细菌和真核生物不同的细胞膜。
4·But all this DNA has a big energetic cost that cripples even giant bacteria — stopping them from turning into more complex eukaryotes.
但是，所有这些DNA需要高能耗，大量成本甚至削弱巨大的细菌——阻止它们成为更为复杂的真核生物。
5·While, like bacteria, archaeans don't have a cell nucleus, they share other traits with eukaryotes like you and me.
虽然，像细菌一样，古生菌也没有细胞核，但是它们与你我这样的真核生物具有其他共同的特性。