When we take the microbes from an obese mouse and transplant them into a genetically normal mouse that's been raised in a bubble with no microbes of its own, it becomes fatter than if it got them from a regular mouse.
当我们从肥胖的老鼠身上 提取一些微生物 并移植到基因正常的老鼠身上， 那只老鼠自身不带微生物， 是在无菌膜下培养的， 这只老鼠与从正常老鼠身上 获得微生物相比变胖了。