So what we are going to look at is we're going to look at this one baby's stool, the fecal community, which represents the gut, sampled every week for almost two and a half years.
我们要看的是 一个婴儿的粪菌， 排泄物的微生物菌落代表着大肠的菌落， 每周取样，持续了大约两年半。