这是因为，如果原始的蛋白质的集合对于所有的生物都是一样的话，那么只需要相对少量的突变就可以成为现代的蛋白质，他说。

That's because, if the original protein set was the same for all creatures, a relatively small number of mutations would have been needed to arrive at the modern proteins, he said.

youdao

几乎可以肯定，这种DNA, RNA和蛋白质系统进化的能力，要比上述所希望的原始细胞的更大一些。

The capacity of such DNA, RNA, protein systems to evolve is almost certainly much greater than the protocells hoped for above.

youdao

在原始人的时代，男人是猎手，要依赖蛋白质来长肌肉，并把肉类看作是战利品。而女人则负责采集水果和蔬菜。

As cavemen, he suggests, men were hunters, relying on protein to build muscles, and seeing meat as a reward, while women were gatherers of fruit and vegetables.

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