translation.en: But it turns out the environment is very critical for this, and you can only define an essential or non-essential gene We also tried to take a more directly intellectual approach with the genomes of 13 related organisms, and we tried to compare all of those, to see what they had in common.
translation.zh: 但结果我们发现环境对此的影响非常关键 我们只能根据 环境中确实存在的条件 来定义必需和非必需基因 我们还试图做一个更直观的研究 对13个有亲缘关系的生物 我们试图比较它们的基因组，看它们是否有相同之处