translation.en: The engineering approach simply says, "Let's go and periodically repair all of these various types of damage -- not necessarily repair them completely, but repair them quite a lot, so that we keep the level of damage down below the threshold that must exist, that causes it to be pathogenic."
translation.zh: 该工程方法只是表示， “我们定期修复所有的这些不同类型的损害 – 他们不一定完全修复[这些损害]， 但修复的足以让我们继续避免 一个会造成导致死亡或生病的程度。”