translation.en: Well, that seemingly mundane question is where our group first jumped into this story, and what we found as we dove down into the brain, down among the neurons and the blood vessels, was that the brain's solution to the problem of waste clearance, it was really unexpected.
translation.zh: 那么，这个看上去普通的问题 就是我们团队最初做这个项目的原因。 我们发现， 当我们深入到大脑中， 一直深入到神经元和血管， 去寻找大脑解决垃圾清理的问题 的机制时，得到的结果 是出乎我们意料的